Finding the Third Proportional to 9,112,768 and 13,309,288

Step by Step Solution

1. Step 1: Write the proportion equation
   9,112,768 : 13,309,288 = 13,309,288 : x
2. Step 2: Convert to fraction form
   9,112,768/13,309,288 = 13,309,288/x
3. Step 3: Cross multiply
   9,112,768x = 13,309,288 × 13,309,288
4. Step 4: Simplify right side
   9,112,768x = 177,137,147,066,944
5. Step 5: Solve for x
   x = 177,137,147,066,944/9,112,768
6. Step 6: Final answer
   x = 19,438,347.06