Finding the Third Proportional to 4,234,746 and 9,230,820

Step by Step Solution

1. Step 1: Write the proportion equation
   4,234,746 : 9,230,820 = 9,230,820 : x
2. Step 2: Convert to fraction form
   4,234,746/9,230,820 = 9,230,820/x
3. Step 3: Cross multiply
   4,234,746x = 9,230,820 × 9,230,820
4. Step 4: Simplify right side
   4,234,746x = 85,208,037,872,400
5. Step 5: Solve for x
   x = 85,208,037,872,400/4,234,746
6. Step 6: Final answer
   x = 20,121,168.51