Finding the Third Proportional to 1,030,288 and 2,172,448

Step by Step Solution

1. Step 1: Write the proportion equation
   1,030,288 : 2,172,448 = 2,172,448 : x
2. Step 2: Convert to fraction form
   1,030,288/2,172,448 = 2,172,448/x
3. Step 3: Cross multiply
   1,030,288x = 2,172,448 × 2,172,448
4. Step 4: Simplify right side
   1,030,288x = 4,719,530,312,704
5. Step 5: Solve for x
   x = 4,719,530,312,704/1,030,288
6. Step 6: Final answer
   x = 4,580,787.42