Finding the Third Proportional to 140,866 and 293,428

Step by Step Solution

1. Step 1: Write the proportion equation
   140,866 : 293,428 = 293,428 : x
2. Step 2: Convert to fraction form
   140,866/293,428 = 293,428/x
3. Step 3: Cross multiply
   140,866x = 293,428 × 293,428
4. Step 4: Simplify right side
   140,866x = 86,099,991,184
5. Step 5: Solve for x
   x = 86,099,991,184/140,866
6. Step 6: Final answer
   x = 611,219.11