Finding the Third Proportional to 78,036.75 and 168,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,036.75 : 168,385.50 = 168,385.50 : x
2. Step 2: Convert to fraction form
   78,036.75/168,385.50 = 168,385.50/x
3. Step 3: Cross multiply
   78,036.75x = 168,385.50 × 168,385.50
4. Step 4: Simplify right side
   78,036.75x = 28,353,676,610.25
5. Step 5: Solve for x
   x = 28,353,676,610.25/78,036.75
6. Step 6: Final answer
   x = 363,337.49