Finding the Third Proportional to 78,904.50 and 110,985

Step by Step Solution

1. Step 1: Write the proportion equation
   78,904.50 : 110,985 = 110,985 : x
2. Step 2: Convert to fraction form
   78,904.50/110,985 = 110,985/x
3. Step 3: Cross multiply
   78,904.50x = 110,985 × 110,985
4. Step 4: Simplify right side
   78,904.50x = 12,317,670,225
5. Step 5: Solve for x
   x = 12,317,670,225/78,904.50
6. Step 6: Final answer
   x = 156,108.59