Finding the Third Proportional to 3,655,433 and 7,920,418

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655,433 : 7,920,418 = 7,920,418 : x
2. Step 2: Convert to fraction form
   3,655,433/7,920,418 = 7,920,418/x
3. Step 3: Cross multiply
   3,655,433x = 7,920,418 × 7,920,418
4. Step 4: Simplify right side
   3,655,433x = 62,733,021,294,724
5. Step 5: Solve for x
   x = 62,733,021,294,724/3,655,433
6. Step 6: Final answer
   x = 17,161,584.22