Finding the Third Proportional to 3,987,716 and 5,980,111

Step by Step Solution

1. Step 1: Write the proportion equation
   3,987,716 : 5,980,111 = 5,980,111 : x
2. Step 2: Convert to fraction form
   3,987,716/5,980,111 = 5,980,111/x
3. Step 3: Cross multiply
   3,987,716x = 5,980,111 × 5,980,111
4. Step 4: Simplify right side
   3,987,716x = 35,761,727,572,321
5. Step 5: Solve for x
   x = 35,761,727,572,321/3,987,716
6. Step 6: Final answer
   x = 8,967,972.54