Finding the Third Proportional to 82,839,344.50 and 123,540,643

Step by Step Solution

1. Step 1: Write the proportion equation
   82,839,344.50 : 123,540,643 = 123,540,643 : x
2. Step 2: Convert to fraction form
   82,839,344.50/123,540,643 = 123,540,643/x
3. Step 3: Cross multiply
   82,839,344.50x = 123,540,643 × 123,540,643
4. Step 4: Simplify right side
   82,839,344.50x = 15,262,290,472,853,448
5. Step 5: Solve for x
   x = 15,262,290,472,853,448/82,839,344.50
6. Step 6: Final answer
   x = 184,239,633.53