Finding the Third Proportional to 80,105,041.13 and 164,456,689.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,105,041.13 : 164,456,689.50 = 164,456,689.50 : x
2. Step 2: Convert to fraction form
   80,105,041.13/164,456,689.50 = 164,456,689.50/x
3. Step 3: Cross multiply
   80,105,041.13x = 164,456,689.50 × 164,456,689.50
4. Step 4: Simplify right side
   80,105,041.13x = 27,046,002,721,299,412
5. Step 5: Solve for x
   x = 27,046,002,721,299,412/80,105,041.13
6. Step 6: Final answer
   x = 337,631,718.82