Finding the Third Proportional to 7,665,964 and 11,499,138

Step by Step Solution

1. Step 1: Write the proportion equation
   7,665,964 : 11,499,138 = 11,499,138 : x
2. Step 2: Convert to fraction form
   7,665,964/11,499,138 = 11,499,138/x
3. Step 3: Cross multiply
   7,665,964x = 11,499,138 × 11,499,138
4. Step 4: Simplify right side
   7,665,964x = 132,230,174,743,044
5. Step 5: Solve for x
   x = 132,230,174,743,044/7,665,964
6. Step 6: Final answer
   x = 17,248,995.00