Finding the Third Proportional to 4,685,598 and 7,078,320

Step by Step Solution

1. Step 1: Write the proportion equation
   4,685,598 : 7,078,320 = 7,078,320 : x
2. Step 2: Convert to fraction form
   4,685,598/7,078,320 = 7,078,320/x
3. Step 3: Cross multiply
   4,685,598x = 7,078,320 × 7,078,320
4. Step 4: Simplify right side
   4,685,598x = 50,102,614,022,400
5. Step 5: Solve for x
   x = 50,102,614,022,400/4,685,598
6. Step 6: Final answer
   x = 10,692,896.41