Finding the Third Proportional to 78,906.50 and 110,988

Step by Step Solution

1. Step 1: Write the proportion equation
   78,906.50 : 110,988 = 110,988 : x
2. Step 2: Convert to fraction form
   78,906.50/110,988 = 110,988/x
3. Step 3: Cross multiply
   78,906.50x = 110,988 × 110,988
4. Step 4: Simplify right side
   78,906.50x = 12,318,336,144
5. Step 5: Solve for x
   x = 12,318,336,144/78,906.50
6. Step 6: Final answer
   x = 156,113.07