Finding the Third Proportional to 42,386,658 and 91,548,642

Step by Step Solution

1. Step 1: Write the proportion equation
   42,386,658 : 91,548,642 = 91,548,642 : x
2. Step 2: Convert to fraction form
   42,386,658/91,548,642 = 91,548,642/x
3. Step 3: Cross multiply
   42,386,658x = 91,548,642 × 91,548,642
4. Step 4: Simplify right side
   42,386,658x = 8,381,153,852,044,164
5. Step 5: Solve for x
   x = 8,381,153,852,044,164/42,386,658
6. Step 6: Final answer
   x = 197,730,942.88