Finding the Third Proportional to 17,142,312 and 36,609,475.50

Step by Step Solution

1. Step 1: Write the proportion equation
   17,142,312 : 36,609,475.50 = 36,609,475.50 : x
2. Step 2: Convert to fraction form
   17,142,312/36,609,475.50 = 36,609,475.50/x
3. Step 3: Cross multiply
   17,142,312x = 36,609,475.50 × 36,609,475.50
4. Step 4: Simplify right side
   17,142,312x = 1,340,253,696,385,100.25
5. Step 5: Solve for x
   x = 1,340,253,696,385,100.25/17,142,312
6. Step 6: Final answer
   x = 78,183,951.87