Finding the Third Proportional to 207,543.50 and 455,705

Step by Step Solution

1. Step 1: Write the proportion equation
   207,543.50 : 455,705 = 455,705 : x
2. Step 2: Convert to fraction form
   207,543.50/455,705 = 455,705/x
3. Step 3: Cross multiply
   207,543.50x = 455,705 × 455,705
4. Step 4: Simplify right side
   207,543.50x = 207,667,047,025
5. Step 5: Solve for x
   x = 207,667,047,025/207,543.50
6. Step 6: Final answer
   x = 1,000,595.28