Finding the Third Proportional to 78,816.50 and 119,042.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,816.50 : 119,042.50 = 119,042.50 : x
2. Step 2: Convert to fraction form
   78,816.50/119,042.50 = 119,042.50/x
3. Step 3: Cross multiply
   78,816.50x = 119,042.50 × 119,042.50
4. Step 4: Simplify right side
   78,816.50x = 14,171,116,806.25
5. Step 5: Solve for x
   x = 14,171,116,806.25/78,816.50
6. Step 6: Final answer
   x = 179,798.86