Finding the Third Proportional to 8,538,423,102,379.50 and 13,007,696,979,905

Step by Step Solution

1. Step 1: Write the proportion equation
   8,538,423,102,379.50 : 13,007,696,979,905 = 13,007,696,979,905 : x
2. Step 2: Convert to fraction form
   8,538,423,102,379.50/13,007,696,979,905 = 13,007,696,979,905/x
3. Step 3: Cross multiply
   8,538,423,102,379.50x = 13,007,696,979,905 × 13,007,696,979,905
4. Step 4: Simplify right side
   8,538,423,102,379.50x = 169,200,180,721,029,665,416,806,400
5. Step 5: Solve for x
   x = 169,200,180,721,029,665,416,806,400/8,538,423,102,379.50
6. Step 6: Final answer
   x = 19,816,326,585,394.52