Finding the Third Proportional to 3,788,888 and 8,116,912

Step by Step Solution

1. Step 1: Write the proportion equation
   3,788,888 : 8,116,912 = 8,116,912 : x
2. Step 2: Convert to fraction form
   3,788,888/8,116,912 = 8,116,912/x
3. Step 3: Cross multiply
   3,788,888x = 8,116,912 × 8,116,912
4. Step 4: Simplify right side
   3,788,888x = 65,884,260,415,744
5. Step 5: Solve for x
   x = 65,884,260,415,744/3,788,888
6. Step 6: Final answer
   x = 17,388,811.81