Finding the Third Proportional to 78,613.50 and 110,880

Step by Step Solution

1. Step 1: Write the proportion equation
   78,613.50 : 110,880 = 110,880 : x
2. Step 2: Convert to fraction form
   78,613.50/110,880 = 110,880/x
3. Step 3: Cross multiply
   78,613.50x = 110,880 × 110,880
4. Step 4: Simplify right side
   78,613.50x = 12,294,374,400
5. Step 5: Solve for x
   x = 12,294,374,400/78,613.50
6. Step 6: Final answer
   x = 156,390.12