Finding the Third Proportional to 42,061.50 and 89,739

Step by Step Solution

1. Step 1: Write the proportion equation
   42,061.50 : 89,739 = 89,739 : x
2. Step 2: Convert to fraction form
   42,061.50/89,739 = 89,739/x
3. Step 3: Cross multiply
   42,061.50x = 89,739 × 89,739
4. Step 4: Simplify right side
   42,061.50x = 8,053,088,121
5. Step 5: Solve for x
   x = 8,053,088,121/42,061.50
6. Step 6: Final answer
   x = 191,459.84