Finding the Third Proportional to 112,379.48 and 239,061.80

Step by Step Solution

1. Step 1: Write the proportion equation
   112,379.48 : 239,061.80 = 239,061.80 : x
2. Step 2: Convert to fraction form
   112,379.48/239,061.80 = 239,061.80/x
3. Step 3: Cross multiply
   112,379.48x = 239,061.80 × 239,061.80
4. Step 4: Simplify right side
   112,379.48x = 57,150,542,725.10
5. Step 5: Solve for x
   x = 57,150,542,725.10/112,379.48
6. Step 6: Final answer
   x = 508,549.61