Finding the Third Proportional to 286,969,900,388 and 616,527,057,739

Step by Step Solution

1. Step 1: Write the proportion equation
   286,969,900,388 : 616,527,057,739 = 616,527,057,739 : x
2. Step 2: Convert to fraction form
   286,969,900,388/616,527,057,739 = 616,527,057,739/x
3. Step 3: Cross multiply
   286,969,900,388x = 616,527,057,739 × 616,527,057,739
4. Step 4: Simplify right side
   286,969,900,388x = 380,105,612,924,308,233,912,320
5. Step 5: Solve for x
   x = 380,105,612,924,308,233,912,320/286,969,900,388
6. Step 6: Final answer
   x = 1,324,548,715,424.10