Finding the Third Proportional to 3,690,316 and 7,987,158

Step by Step Solution

1. Step 1: Write the proportion equation
   3,690,316 : 7,987,158 = 7,987,158 : x
2. Step 2: Convert to fraction form
   3,690,316/7,987,158 = 7,987,158/x
3. Step 3: Cross multiply
   3,690,316x = 7,987,158 × 7,987,158
4. Step 4: Simplify right side
   3,690,316x = 63,794,692,916,964
5. Step 5: Solve for x
   x = 63,794,692,916,964/3,690,316
6. Step 6: Final answer
   x = 17,287,054.26