Finding the Third Proportional to 25,479.75 and 56,143.50

Step by Step Solution

1. Step 1: Write the proportion equation
   25,479.75 : 56,143.50 = 56,143.50 : x
2. Step 2: Convert to fraction form
   25,479.75/56,143.50 = 56,143.50/x
3. Step 3: Cross multiply
   25,479.75x = 56,143.50 × 56,143.50
4. Step 4: Simplify right side
   25,479.75x = 3,152,092,592.25
5. Step 5: Solve for x
   x = 3,152,092,592.25/25,479.75
6. Step 6: Final answer
   x = 123,709.71