Finding the Third Proportional to 401,632 and 869,386

Step by Step Solution

1. Step 1: Write the proportion equation
   401,632 : 869,386 = 869,386 : x
2. Step 2: Convert to fraction form
   401,632/869,386 = 869,386/x
3. Step 3: Cross multiply
   401,632x = 869,386 × 869,386
4. Step 4: Simplify right side
   401,632x = 755,832,016,996
5. Step 5: Solve for x
   x = 755,832,016,996/401,632
6. Step 6: Final answer
   x = 1,881,901.88