Finding the Third Proportional to 1,472,128 and 2,215,566

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472,128 : 2,215,566 = 2,215,566 : x
2. Step 2: Convert to fraction form
   1,472,128/2,215,566 = 2,215,566/x
3. Step 3: Cross multiply
   1,472,128x = 2,215,566 × 2,215,566
4. Step 4: Simplify right side
   1,472,128x = 4,908,732,700,356
5. Step 5: Solve for x
   x = 4,908,732,700,356/1,472,128
6. Step 6: Final answer
   x = 3,334,446.94