Finding the Third Proportional to 986,412 and 2,155,464

Step by Step Solution

1. Step 1: Write the proportion equation
   986,412 : 2,155,464 = 2,155,464 : x
2. Step 2: Convert to fraction form
   986,412/2,155,464 = 2,155,464/x
3. Step 3: Cross multiply
   986,412x = 2,155,464 × 2,155,464
4. Step 4: Simplify right side
   986,412x = 4,646,025,055,296
5. Step 5: Solve for x
   x = 4,646,025,055,296/986,412
6. Step 6: Final answer
   x = 4,710,024.87