Finding the Third Proportional to 708,992,448 and 1,139,153,538

Step by Step Solution

1. Step 1: Write the proportion equation
   708,992,448 : 1,139,153,538 = 1,139,153,538 : x
2. Step 2: Convert to fraction form
   708,992,448/1,139,153,538 = 1,139,153,538/x
3. Step 3: Cross multiply
   708,992,448x = 1,139,153,538 × 1,139,153,538
4. Step 4: Simplify right side
   708,992,448x = 1,297,670,783,137,917,440
5. Step 5: Solve for x
   x = 1,297,670,783,137,917,440/708,992,448
6. Step 6: Final answer
   x = 1,830,302,687.71