Finding the Third Proportional to 1,708,816 and 3,638,492

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708,816 : 3,638,492 = 3,638,492 : x
2. Step 2: Convert to fraction form
   1,708,816/3,638,492 = 3,638,492/x
3. Step 3: Cross multiply
   1,708,816x = 3,638,492 × 3,638,492
4. Step 4: Simplify right side
   1,708,816x = 13,238,624,034,064
5. Step 5: Solve for x
   x = 13,238,624,034,064/1,708,816
6. Step 6: Final answer
   x = 7,747,249.58