Finding the Third Proportional to 7,142,442 and 10,729,944

Step by Step Solution

1. Step 1: Write the proportion equation
   7,142,442 : 10,729,944 = 10,729,944 : x
2. Step 2: Convert to fraction form
   7,142,442/10,729,944 = 10,729,944/x
3. Step 3: Cross multiply
   7,142,442x = 10,729,944 × 10,729,944
4. Step 4: Simplify right side
   7,142,442x = 115,131,698,243,136
5. Step 5: Solve for x
   x = 115,131,698,243,136/7,142,442
6. Step 6: Final answer
   x = 16,119,374.61