Finding the Third Proportional to 406,476.50 and 603,820

Step by Step Solution

1. Step 1: Write the proportion equation
   406,476.50 : 603,820 = 603,820 : x
2. Step 2: Convert to fraction form
   406,476.50/603,820 = 603,820/x
3. Step 3: Cross multiply
   406,476.50x = 603,820 × 603,820
4. Step 4: Simplify right side
   406,476.50x = 364,598,592,400
5. Step 5: Solve for x
   x = 364,598,592,400/406,476.50
6. Step 6: Final answer
   x = 896,973.36