Finding the Third Proportional to 1,681,224 and 3,648,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,681,224 : 3,648,228 = 3,648,228 : x
2. Step 2: Convert to fraction form
   1,681,224/3,648,228 = 3,648,228/x
3. Step 3: Cross multiply
   1,681,224x = 3,648,228 × 3,648,228
4. Step 4: Simplify right side
   1,681,224x = 13,309,567,539,984
5. Step 5: Solve for x
   x = 13,309,567,539,984/1,681,224
6. Step 6: Final answer
   x = 7,916,593.83