Finding the Third Proportional to 11,897,605,939.50 and 17,999,428,414.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,897,605,939.50 : 17,999,428,414.50 = 17,999,428,414.50 : x
2. Step 2: Convert to fraction form
   11,897,605,939.50/17,999,428,414.50 = 17,999,428,414.50/x
3. Step 3: Cross multiply
   11,897,605,939.50x = 17,999,428,414.50 × 17,999,428,414.50
4. Step 4: Simplify right side
   11,897,605,939.50x = 323,979,423,248,709,976,064
5. Step 5: Solve for x
   x = 323,979,423,248,709,976,064/11,897,605,939.50
6. Step 6: Final answer
   x = 27,230,639,920.01