Finding the Third Proportional to 25,987.50 and 56,403

Step by Step Solution

1. Step 1: Write the proportion equation
   25,987.50 : 56,403 = 56,403 : x
2. Step 2: Convert to fraction form
   25,987.50/56,403 = 56,403/x
3. Step 3: Cross multiply
   25,987.50x = 56,403 × 56,403
4. Step 4: Simplify right side
   25,987.50x = 3,181,298,409
5. Step 5: Solve for x
   x = 3,181,298,409/25,987.50
6. Step 6: Final answer
   x = 122,416.49