Finding the Third Proportional to 621,488 and 940,632

Step by Step Solution

1. Step 1: Write the proportion equation
   621,488 : 940,632 = 940,632 : x
2. Step 2: Convert to fraction form
   621,488/940,632 = 940,632/x
3. Step 3: Cross multiply
   621,488x = 940,632 × 940,632
4. Step 4: Simplify right side
   621,488x = 884,788,559,424
5. Step 5: Solve for x
   x = 884,788,559,424/621,488
6. Step 6: Final answer
   x = 1,423,661.53