Finding the Third Proportional to 56,335.50 and 78,756.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,335.50 : 78,756.75 = 78,756.75 : x
2. Step 2: Convert to fraction form
   56,335.50/78,756.75 = 78,756.75/x
3. Step 3: Cross multiply
   56,335.50x = 78,756.75 × 78,756.75
4. Step 4: Simplify right side
   56,335.50x = 6,202,625,670.56
5. Step 5: Solve for x
   x = 6,202,625,670.56/56,335.50
6. Step 6: Final answer
   x = 110,101.55