Finding the Third Proportional to 176,594 and 392,417.75

Step by Step Solution

1. Step 1: Write the proportion equation
   176,594 : 392,417.75 = 392,417.75 : x
2. Step 2: Convert to fraction form
   176,594/392,417.75 = 392,417.75/x
3. Step 3: Cross multiply
   176,594x = 392,417.75 × 392,417.75
4. Step 4: Simplify right side
   176,594x = 153,991,690,515.06
5. Step 5: Solve for x
   x = 153,991,690,515.06/176,594
6. Step 6: Final answer
   x = 872,009.75