Finding the Third Proportional to 210,586.50 and 497,124

Step by Step Solution

1. Step 1: Write the proportion equation
   210,586.50 : 497,124 = 497,124 : x
2. Step 2: Convert to fraction form
   210,586.50/497,124 = 497,124/x
3. Step 3: Cross multiply
   210,586.50x = 497,124 × 497,124
4. Step 4: Simplify right side
   210,586.50x = 247,132,271,376
5. Step 5: Solve for x
   x = 247,132,271,376/210,586.50
6. Step 6: Final answer
   x = 1,173,542.80