Finding the Third Proportional to 802,128 and 1,712,499

Step by Step Solution

1. Step 1: Write the proportion equation
   802,128 : 1,712,499 = 1,712,499 : x
2. Step 2: Convert to fraction form
   802,128/1,712,499 = 1,712,499/x
3. Step 3: Cross multiply
   802,128x = 1,712,499 × 1,712,499
4. Step 4: Simplify right side
   802,128x = 2,932,652,825,001
5. Step 5: Solve for x
   x = 2,932,652,825,001/802,128
6. Step 6: Final answer
   x = 3,656,090.83