Finding the Third Proportional to 171,783 and 267,490.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,783 : 267,490.50 = 267,490.50 : x
2. Step 2: Convert to fraction form
   171,783/267,490.50 = 267,490.50/x
3. Step 3: Cross multiply
   171,783x = 267,490.50 × 267,490.50
4. Step 4: Simplify right side
   171,783x = 71,551,167,590.25
5. Step 5: Solve for x
   x = 71,551,167,590.25/171,783
6. Step 6: Final answer
   x = 416,520.65