Finding the Third Proportional to 64,982,641.50 and 142,718,004

Step by Step Solution

1. Step 1: Write the proportion equation
   64,982,641.50 : 142,718,004 = 142,718,004 : x
2. Step 2: Convert to fraction form
   64,982,641.50/142,718,004 = 142,718,004/x
3. Step 3: Cross multiply
   64,982,641.50x = 142,718,004 × 142,718,004
4. Step 4: Simplify right side
   64,982,641.50x = 20,368,428,665,744,016
5. Step 5: Solve for x
   x = 20,368,428,665,744,016/64,982,641.50
6. Step 6: Final answer
   x = 313,444,147.48