Finding the Third Proportional to 56,272.50 and 79,143.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,272.50 : 79,143.75 = 79,143.75 : x
2. Step 2: Convert to fraction form
   56,272.50/79,143.75 = 79,143.75/x
3. Step 3: Cross multiply
   56,272.50x = 79,143.75 × 79,143.75
4. Step 4: Simplify right side
   56,272.50x = 6,263,733,164.06
5. Step 5: Solve for x
   x = 6,263,733,164.06/56,272.50
6. Step 6: Final answer
   x = 111,310.73