Finding the Third Proportional to 1,748,256 and 2,638,448

Step by Step Solution

1. Step 1: Write the proportion equation
   1,748,256 : 2,638,448 = 2,638,448 : x
2. Step 2: Convert to fraction form
   1,748,256/2,638,448 = 2,638,448/x
3. Step 3: Cross multiply
   1,748,256x = 2,638,448 × 2,638,448
4. Step 4: Simplify right side
   1,748,256x = 6,961,407,848,704
5. Step 5: Solve for x
   x = 6,961,407,848,704/1,748,256
6. Step 6: Final answer
   x = 3,981,915.61