Finding the Third Proportional to 661,916 and 1,428,810

Step by Step Solution

1. Step 1: Write the proportion equation
   661,916 : 1,428,810 = 1,428,810 : x
2. Step 2: Convert to fraction form
   661,916/1,428,810 = 1,428,810/x
3. Step 3: Cross multiply
   661,916x = 1,428,810 × 1,428,810
4. Step 4: Simplify right side
   661,916x = 2,041,498,016,100
5. Step 5: Solve for x
   x = 2,041,498,016,100/661,916
6. Step 6: Final answer
   x = 3,084,225.21