Finding the Third Proportional to 73,210.50 and 99,445.50

Step by Step Solution

1. Step 1: Write the proportion equation
   73,210.50 : 99,445.50 = 99,445.50 : x
2. Step 2: Convert to fraction form
   73,210.50/99,445.50 = 99,445.50/x
3. Step 3: Cross multiply
   73,210.50x = 99,445.50 × 99,445.50
4. Step 4: Simplify right side
   73,210.50x = 9,889,407,470.25
5. Step 5: Solve for x
   x = 9,889,407,470.25/73,210.50
6. Step 6: Final answer
   x = 135,081.82