Finding the Third Proportional to 78,282 and 104,872.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,282 : 104,872.50 = 104,872.50 : x
2. Step 2: Convert to fraction form
   78,282/104,872.50 = 104,872.50/x
3. Step 3: Cross multiply
   78,282x = 104,872.50 × 104,872.50
4. Step 4: Simplify right side
   78,282x = 10,998,241,256.25
5. Step 5: Solve for x
   x = 10,998,241,256.25/78,282
6. Step 6: Final answer
   x = 140,495.15