Finding the Third Proportional to 92,469 and 139,234.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,469 : 139,234.50 = 139,234.50 : x
2. Step 2: Convert to fraction form
   92,469/139,234.50 = 139,234.50/x
3. Step 3: Cross multiply
   92,469x = 139,234.50 × 139,234.50
4. Step 4: Simplify right side
   92,469x = 19,386,245,990.25
5. Step 5: Solve for x
   x = 19,386,245,990.25/92,469
6. Step 6: Final answer
   x = 209,651.30