Finding the Third Proportional to 1,681,212 and 3,598,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,212 : 3,598,620 = 3,598,620 : x
2. Step 2: Convert to fraction form
   1,681,212/3,598,620 = 3,598,620/x
3. Step 3: Cross multiply
   1,681,212x = 3,598,620 × 3,598,620
4. Step 4: Simplify right side
   1,681,212x = 12,950,065,904,400
5. Step 5: Solve for x
   x = 12,950,065,904,400/1,681,212
6. Step 6: Final answer
   x = 7,702,815.53