Finding the Third Proportional to 148,689,459 and 322,086,510

Step by Step Solution

1. Step 1: Write the proportion equation
   148,689,459 : 322,086,510 = 322,086,510 : x
2. Step 2: Convert to fraction form
   148,689,459/322,086,510 = 322,086,510/x
3. Step 3: Cross multiply
   148,689,459x = 322,086,510 × 322,086,510
4. Step 4: Simplify right side
   148,689,459x = 103,739,719,923,980,096
5. Step 5: Solve for x
   x = 103,739,719,923,980,096/148,689,459
6. Step 6: Final answer
   x = 697,693,842.06