Finding the Third Proportional to 4,207,536 and 9,215,984

Step by Step Solution

1. Step 1: Write the proportion equation
   4,207,536 : 9,215,984 = 9,215,984 : x
2. Step 2: Convert to fraction form
   4,207,536/9,215,984 = 9,215,984/x
3. Step 3: Cross multiply
   4,207,536x = 9,215,984 × 9,215,984
4. Step 4: Simplify right side
   4,207,536x = 84,934,361,088,256
5. Step 5: Solve for x
   x = 84,934,361,088,256/4,207,536
6. Step 6: Final answer
   x = 20,186,247.03