Finding the Third Proportional to 1,662,174 and 3,639,630

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662,174 : 3,639,630 = 3,639,630 : x
2. Step 2: Convert to fraction form
   1,662,174/3,639,630 = 3,639,630/x
3. Step 3: Cross multiply
   1,662,174x = 3,639,630 × 3,639,630
4. Step 4: Simplify right side
   1,662,174x = 13,246,906,536,900
5. Step 5: Solve for x
   x = 13,246,906,536,900/1,662,174
6. Step 6: Final answer
   x = 7,969,626.85