Finding the Third Proportional to 56,316.50 and 78,733.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,316.50 : 78,733.75 = 78,733.75 : x
2. Step 2: Convert to fraction form
   56,316.50/78,733.75 = 78,733.75/x
3. Step 3: Cross multiply
   56,316.50x = 78,733.75 × 78,733.75
4. Step 4: Simplify right side
   56,316.50x = 6,199,003,389.06
5. Step 5: Solve for x
   x = 6,199,003,389.06/56,316.50
6. Step 6: Final answer
   x = 110,074.37