Finding the Third Proportional to 1,448,474 and 2,128,317

Step by Step Solution

1. Step 1: Write the proportion equation
   1,448,474 : 2,128,317 = 2,128,317 : x
2. Step 2: Convert to fraction form
   1,448,474/2,128,317 = 2,128,317/x
3. Step 3: Cross multiply
   1,448,474x = 2,128,317 × 2,128,317
4. Step 4: Simplify right side
   1,448,474x = 4,529,733,252,489
5. Step 5: Solve for x
   x = 4,529,733,252,489/1,448,474
6. Step 6: Final answer
   x = 3,127,245.12