Finding the Third Proportional to 88,965 and 138,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   88,965 : 138,550.50 = 138,550.50 : x
2. Step 2: Convert to fraction form
   88,965/138,550.50 = 138,550.50/x
3. Step 3: Cross multiply
   88,965x = 138,550.50 × 138,550.50
4. Step 4: Simplify right side
   88,965x = 19,196,241,050.25
5. Step 5: Solve for x
   x = 19,196,241,050.25/88,965
6. Step 6: Final answer
   x = 215,772.96