Finding the Third Proportional to 399,951 and 562,504.50

Step by Step Solution

1. Step 1: Write the proportion equation
   399,951 : 562,504.50 = 562,504.50 : x
2. Step 2: Convert to fraction form
   399,951/562,504.50 = 562,504.50/x
3. Step 3: Cross multiply
   399,951x = 562,504.50 × 562,504.50
4. Step 4: Simplify right side
   399,951x = 316,411,312,520.25
5. Step 5: Solve for x
   x = 316,411,312,520.25/399,951
6. Step 6: Final answer
   x = 791,125.19