Finding the Third Proportional to 78,285 and 104,876.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,285 : 104,876.50 = 104,876.50 : x
2. Step 2: Convert to fraction form
   78,285/104,876.50 = 104,876.50/x
3. Step 3: Cross multiply
   78,285x = 104,876.50 × 104,876.50
4. Step 4: Simplify right side
   78,285x = 10,999,080,252.25
5. Step 5: Solve for x
   x = 10,999,080,252.25/78,285
6. Step 6: Final answer
   x = 140,500.48