Finding the Third Proportional to 3,968,724 and 8,693,769

Step by Step Solution

1. Step 1: Write the proportion equation
   3,968,724 : 8,693,769 = 8,693,769 : x
2. Step 2: Convert to fraction form
   3,968,724/8,693,769 = 8,693,769/x
3. Step 3: Cross multiply
   3,968,724x = 8,693,769 × 8,693,769
4. Step 4: Simplify right side
   3,968,724x = 75,581,619,425,361
5. Step 5: Solve for x
   x = 75,581,619,425,361/3,968,724
6. Step 6: Final answer
   x = 19,044,312.33