Finding the Third Proportional to 4,287,234 and 9,438,064

Step by Step Solution

1. Step 1: Write the proportion equation
   4,287,234 : 9,438,064 = 9,438,064 : x
2. Step 2: Convert to fraction form
   4,287,234/9,438,064 = 9,438,064/x
3. Step 3: Cross multiply
   4,287,234x = 9,438,064 × 9,438,064
4. Step 4: Simplify right side
   4,287,234x = 89,077,052,068,096
5. Step 5: Solve for x
   x = 89,077,052,068,096/4,287,234
6. Step 6: Final answer
   x = 20,777,277.86