Finding the Third Proportional to 252,282 and 420,454.50

Step by Step Solution

1. Step 1: Write the proportion equation
   252,282 : 420,454.50 = 420,454.50 : x
2. Step 2: Convert to fraction form
   252,282/420,454.50 = 420,454.50/x
3. Step 3: Cross multiply
   252,282x = 420,454.50 × 420,454.50
4. Step 4: Simplify right side
   252,282x = 176,781,986,570.25
5. Step 5: Solve for x
   x = 176,781,986,570.25/252,282
6. Step 6: Final answer
   x = 700,731.67