Finding the Third Proportional to 1,658,910 and 3,639,228

Step by Step Solution

1. Step 1: Write the proportion equation
   1,658,910 : 3,639,228 = 3,639,228 : x
2. Step 2: Convert to fraction form
   1,658,910/3,639,228 = 3,639,228/x
3. Step 3: Cross multiply
   1,658,910x = 3,639,228 × 3,639,228
4. Step 4: Simplify right side
   1,658,910x = 13,243,980,435,984
5. Step 5: Solve for x
   x = 13,243,980,435,984/1,658,910
6. Step 6: Final answer
   x = 7,983,543.67