Finding the Third Proportional to 1,708,726 and 3,638,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708,726 : 3,638,312 = 3,638,312 : x
2. Step 2: Convert to fraction form
   1,708,726/3,638,312 = 3,638,312/x
3. Step 3: Cross multiply
   1,708,726x = 3,638,312 × 3,638,312
4. Step 4: Simplify right side
   1,708,726x = 13,237,314,209,344
5. Step 5: Solve for x
   x = 13,237,314,209,344/1,708,726
6. Step 6: Final answer
   x = 7,746,891.08