Finding the Third Proportional to 140,910 and 293,458

Step by Step Solution

1. Step 1: Write the proportion equation
   140,910 : 293,458 = 293,458 : x
2. Step 2: Convert to fraction form
   140,910/293,458 = 293,458/x
3. Step 3: Cross multiply
   140,910x = 293,458 × 293,458
4. Step 4: Simplify right side
   140,910x = 86,117,597,764
5. Step 5: Solve for x
   x = 86,117,597,764/140,910
6. Step 6: Final answer
   x = 611,153.20