Finding the Third Proportional to 460,971 and 621,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   460,971 : 621,418.50 = 621,418.50 : x
2. Step 2: Convert to fraction form
   460,971/621,418.50 = 621,418.50/x
3. Step 3: Cross multiply
   460,971x = 621,418.50 × 621,418.50
4. Step 4: Simplify right side
   460,971x = 386,160,952,142.25
5. Step 5: Solve for x
   x = 386,160,952,142.25/460,971
6. Step 6: Final answer
   x = 837,712.03