Finding the Third Proportional to 4,207,260 and 9,215,372

Step by Step Solution

1. Step 1: Write the proportion equation
   4,207,260 : 9,215,372 = 9,215,372 : x
2. Step 2: Convert to fraction form
   4,207,260/9,215,372 = 9,215,372/x
3. Step 3: Cross multiply
   4,207,260x = 9,215,372 × 9,215,372
4. Step 4: Simplify right side
   4,207,260x = 84,923,081,098,384
5. Step 5: Solve for x
   x = 84,923,081,098,384/4,207,260
6. Step 6: Final answer
   x = 20,184,890.19