Finding the Third Proportional to 3,694,900 and 7,939,880

Step by Step Solution

1. Step 1: Write the proportion equation
   3,694,900 : 7,939,880 = 7,939,880 : x
2. Step 2: Convert to fraction form
   3,694,900/7,939,880 = 7,939,880/x
3. Step 3: Cross multiply
   3,694,900x = 7,939,880 × 7,939,880
4. Step 4: Simplify right side
   3,694,900x = 63,041,694,414,400
5. Step 5: Solve for x
   x = 63,041,694,414,400/3,694,900
6. Step 6: Final answer
   x = 17,061,813.42