Finding the Third Proportional to 76,549.50 and 108,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   76,549.50 : 108,870.75 = 108,870.75 : x
2. Step 2: Convert to fraction form
   76,549.50/108,870.75 = 108,870.75/x
3. Step 3: Cross multiply
   76,549.50x = 108,870.75 × 108,870.75
4. Step 4: Simplify right side
   76,549.50x = 11,852,840,205.56
5. Step 5: Solve for x
   x = 11,852,840,205.56/76,549.50
6. Step 6: Final answer
   x = 154,838.90