Finding the Third Proportional to 748,680 and 1,637,328

Step by Step Solution

1. Step 1: Write the proportion equation
   748,680 : 1,637,328 = 1,637,328 : x
2. Step 2: Convert to fraction form
   748,680/1,637,328 = 1,637,328/x
3. Step 3: Cross multiply
   748,680x = 1,637,328 × 1,637,328
4. Step 4: Simplify right side
   748,680x = 2,680,842,979,584
5. Step 5: Solve for x
   x = 2,680,842,979,584/748,680
6. Step 6: Final answer
   x = 3,580,759.44