Finding the Third Proportional to 3,968,727 and 8,694,123

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,727 : 8,694,123 = 8,694,123 : x
2. Step 2: Convert to fraction form
   3,968,727/8,694,123 = 8,694,123/x
3. Step 3: Cross multiply
   3,968,727x = 8,694,123 × 8,694,123
4. Step 4: Simplify right side
   3,968,727x = 75,587,774,739,129
5. Step 5: Solve for x
   x = 75,587,774,739,129/3,968,727
6. Step 6: Final answer
   x = 19,045,848.89