Finding the Third Proportional to 1,708,812 and 3,638,484

Step by Step Solution

1. Step 1: Write the proportion equation
   1,708,812 : 3,638,484 = 3,638,484 : x
2. Step 2: Convert to fraction form
   1,708,812/3,638,484 = 3,638,484/x
3. Step 3: Cross multiply
   1,708,812x = 3,638,484 × 3,638,484
4. Step 4: Simplify right side
   1,708,812x = 13,238,565,818,256
5. Step 5: Solve for x
   x = 13,238,565,818,256/1,708,812
6. Step 6: Final answer
   x = 7,747,233.64