Finding the Third Proportional to 1,215,145 and 2,659,133

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,145 : 2,659,133 = 2,659,133 : x
2. Step 2: Convert to fraction form
   1,215,145/2,659,133 = 2,659,133/x
3. Step 3: Cross multiply
   1,215,145x = 2,659,133 × 2,659,133
4. Step 4: Simplify right side
   1,215,145x = 7,070,988,311,689
5. Step 5: Solve for x
   x = 7,070,988,311,689/1,215,145
6. Step 6: Final answer
   x = 5,819,049.01