Finding the Third Proportional to 78,279 and 104,862

Step by Step Solution

1. Step 1: Write the proportion equation
   78,279 : 104,862 = 104,862 : x
2. Step 2: Convert to fraction form
   78,279/104,862 = 104,862/x
3. Step 3: Cross multiply
   78,279x = 104,862 × 104,862
4. Step 4: Simplify right side
   78,279x = 10,996,039,044
5. Step 5: Solve for x
   x = 10,996,039,044/78,279
6. Step 6: Final answer
   x = 140,472.40