Finding the Third Proportional to 100,939 and 156,738.50

Step by Step Solution

1. Step 1: Write the proportion equation
   100,939 : 156,738.50 = 156,738.50 : x
2. Step 2: Convert to fraction form
   100,939/156,738.50 = 156,738.50/x
3. Step 3: Cross multiply
   100,939x = 156,738.50 × 156,738.50
4. Step 4: Simplify right side
   100,939x = 24,566,957,382.25
5. Step 5: Solve for x
   x = 24,566,957,382.25/100,939
6. Step 6: Final answer
   x = 243,384.20