Finding the Third Proportional to 25,978.50 and 56,385

Step by Step Solution

1. Step 1: Write the proportion equation
   25,978.50 : 56,385 = 56,385 : x
2. Step 2: Convert to fraction form
   25,978.50/56,385 = 56,385/x
3. Step 3: Cross multiply
   25,978.50x = 56,385 × 56,385
4. Step 4: Simplify right side
   25,978.50x = 3,179,268,225
5. Step 5: Solve for x
   x = 3,179,268,225/25,978.50
6. Step 6: Final answer
   x = 122,380.75