Finding the Third Proportional to 399,962 and 562,518

Step by Step Solution

1. Step 1: Write the proportion equation
   399,962 : 562,518 = 562,518 : x
2. Step 2: Convert to fraction form
   399,962/562,518 = 562,518/x
3. Step 3: Cross multiply
   399,962x = 562,518 × 562,518
4. Step 4: Simplify right side
   399,962x = 316,426,500,324
5. Step 5: Solve for x
   x = 316,426,500,324/399,962
6. Step 6: Final answer
   x = 791,141.41