Finding the Third Proportional to 140,814 and 293,280.75

Step by Step Solution

1. Step 1: Write the proportion equation
   140,814 : 293,280.75 = 293,280.75 : x
2. Step 2: Convert to fraction form
   140,814/293,280.75 = 293,280.75/x
3. Step 3: Cross multiply
   140,814x = 293,280.75 × 293,280.75
4. Step 4: Simplify right side
   140,814x = 86,013,598,320.56
5. Step 5: Solve for x
   x = 86,013,598,320.56/140,814
6. Step 6: Final answer
   x = 610,831.30