Finding the Third Proportional to 40,218.50 and 52,887.75

Step by Step Solution

1. Step 1: Write the proportion equation
   40,218.50 : 52,887.75 = 52,887.75 : x
2. Step 2: Convert to fraction form
   40,218.50/52,887.75 = 52,887.75/x
3. Step 3: Cross multiply
   40,218.50x = 52,887.75 × 52,887.75
4. Step 4: Simplify right side
   40,218.50x = 2,797,114,100.06
5. Step 5: Solve for x
   x = 2,797,114,100.06/40,218.50
6. Step 6: Final answer
   x = 69,547.95