Finding the Third Proportional to 72,580.50 and 108,902.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,580.50 : 108,902.25 = 108,902.25 : x
2. Step 2: Convert to fraction form
   72,580.50/108,902.25 = 108,902.25/x
3. Step 3: Cross multiply
   72,580.50x = 108,902.25 × 108,902.25
4. Step 4: Simplify right side
   72,580.50x = 11,859,700,055.06
5. Step 5: Solve for x
   x = 11,859,700,055.06/72,580.50
6. Step 6: Final answer
   x = 163,400.64