Finding the Third Proportional to 337,978 and 723,931

Step by Step Solution

1. Step 1: Write the proportion equation
   337,978 : 723,931 = 723,931 : x
2. Step 2: Convert to fraction form
   337,978/723,931 = 723,931/x
3. Step 3: Cross multiply
   337,978x = 723,931 × 723,931
4. Step 4: Simplify right side
   337,978x = 524,076,092,761
5. Step 5: Solve for x
   x = 524,076,092,761/337,978
6. Step 6: Final answer
   x = 1,550,621.91