Finding the Third Proportional to 140,815 and 293,279

Step by Step Solution

1. Step 1: Write the proportion equation
   140,815 : 293,279 = 293,279 : x
2. Step 2: Convert to fraction form
   140,815/293,279 = 293,279/x
3. Step 3: Cross multiply
   140,815x = 293,279 × 293,279
4. Step 4: Simplify right side
   140,815x = 86,012,571,841
5. Step 5: Solve for x
   x = 86,012,571,841/140,815
6. Step 6: Final answer
   x = 610,819.67