Finding the Third Proportional to 499,128 and 1,069,712

Step by Step Solution

1. Step 1: Write the proportion equation
   499,128 : 1,069,712 = 1,069,712 : x
2. Step 2: Convert to fraction form
   499,128/1,069,712 = 1,069,712/x
3. Step 3: Cross multiply
   499,128x = 1,069,712 × 1,069,712
4. Step 4: Simplify right side
   499,128x = 1,144,283,762,944
5. Step 5: Solve for x
   x = 1,144,283,762,944/499,128
6. Step 6: Final answer
   x = 2,292,565.76