Finding the Third Proportional to 42,255,342 and 89,049,538

Step by Step Solution

1. Step 1: Write the proportion equation
   42,255,342 : 89,049,538 = 89,049,538 : x
2. Step 2: Convert to fraction form
   42,255,342/89,049,538 = 89,049,538/x
3. Step 3: Cross multiply
   42,255,342x = 89,049,538 × 89,049,538
4. Step 4: Simplify right side
   42,255,342x = 7,929,820,218,013,444
5. Step 5: Solve for x
   x = 7,929,820,218,013,444/42,255,342
6. Step 6: Final answer
   x = 187,664,324.62