Finding the Third Proportional to 1,720,258 and 3,645,604

Step by Step Solution

1. Step 1: Write the proportion equation
   1,720,258 : 3,645,604 = 3,645,604 : x
2. Step 2: Convert to fraction form
   1,720,258/3,645,604 = 3,645,604/x
3. Step 3: Cross multiply
   1,720,258x = 3,645,604 × 3,645,604
4. Step 4: Simplify right side
   1,720,258x = 13,290,428,524,816
5. Step 5: Solve for x
   x = 13,290,428,524,816/1,720,258
6. Step 6: Final answer
   x = 7,725,834.45