Finding the Third Proportional to 56,715 and 124,282.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,715 : 124,282.50 = 124,282.50 : x
2. Step 2: Convert to fraction form
   56,715/124,282.50 = 124,282.50/x
3. Step 3: Cross multiply
   56,715x = 124,282.50 × 124,282.50
4. Step 4: Simplify right side
   56,715x = 15,446,139,806.25
5. Step 5: Solve for x
   x = 15,446,139,806.25/56,715
6. Step 6: Final answer
   x = 272,346.64