Finding the Third Proportional to 65,566,239 and 142,998,438

Step by Step Solution

1. Step 1: Write the proportion equation
   65,566,239 : 142,998,438 = 142,998,438 : x
2. Step 2: Convert to fraction form
   65,566,239/142,998,438 = 142,998,438/x
3. Step 3: Cross multiply
   65,566,239x = 142,998,438 × 142,998,438
4. Step 4: Simplify right side
   65,566,239x = 20,448,553,270,439,844
5. Step 5: Solve for x
   x = 20,448,553,270,439,844/65,566,239
6. Step 6: Final answer
   x = 311,876,258.00