Finding the Third Proportional to 1,215,174 and 2,659,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,215,174 : 2,659,200 = 2,659,200 : x
2. Step 2: Convert to fraction form
   1,215,174/2,659,200 = 2,659,200/x
3. Step 3: Cross multiply
   1,215,174x = 2,659,200 × 2,659,200
4. Step 4: Simplify right side
   1,215,174x = 7,071,344,640,000
5. Step 5: Solve for x
   x = 7,071,344,640,000/1,215,174
6. Step 6: Final answer
   x = 5,819,203.37