Finding the Third Proportional to 3,689,968 and 8,106,380

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,968 : 8,106,380 = 8,106,380 : x
2. Step 2: Convert to fraction form
   3,689,968/8,106,380 = 8,106,380/x
3. Step 3: Cross multiply
   3,689,968x = 8,106,380 × 8,106,380
4. Step 4: Simplify right side
   3,689,968x = 65,713,396,704,400
5. Step 5: Solve for x
   x = 65,713,396,704,400/3,689,968
6. Step 6: Final answer
   x = 17,808,663.03