Finding the Third Proportional to 4,060,778 and 8,669,550

Step by Step Solution

1. Step 1: Write the proportion equation
   4,060,778 : 8,669,550 = 8,669,550 : x
2. Step 2: Convert to fraction form
   4,060,778/8,669,550 = 8,669,550/x
3. Step 3: Cross multiply
   4,060,778x = 8,669,550 × 8,669,550
4. Step 4: Simplify right side
   4,060,778x = 75,161,097,202,500
5. Step 5: Solve for x
   x = 75,161,097,202,500/4,060,778
6. Step 6: Final answer
   x = 18,509,038.71