Finding the Third Proportional to 78,276.38 and 111,901.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,276.38 : 111,901.50 = 111,901.50 : x
2. Step 2: Convert to fraction form
   78,276.38/111,901.50 = 111,901.50/x
3. Step 3: Cross multiply
   78,276.38x = 111,901.50 × 111,901.50
4. Step 4: Simplify right side
   78,276.38x = 12,521,945,702.25
5. Step 5: Solve for x
   x = 12,521,945,702.25/78,276.38
6. Step 6: Final answer
   x = 159,970.95