Finding the Third Proportional to 42,487.50 and 87,705

Step by Step Solution

1. Step 1: Write the proportion equation
   42,487.50 : 87,705 = 87,705 : x
2. Step 2: Convert to fraction form
   42,487.50/87,705 = 87,705/x
3. Step 3: Cross multiply
   42,487.50x = 87,705 × 87,705
4. Step 4: Simplify right side
   42,487.50x = 7,692,167,025
5. Step 5: Solve for x
   x = 7,692,167,025/42,487.50
6. Step 6: Final answer
   x = 181,045.41