Finding the Third Proportional to 915,790 and 1,346,245

Step by Step Solution

1. Step 1: Write the proportion equation
   915,790 : 1,346,245 = 1,346,245 : x
2. Step 2: Convert to fraction form
   915,790/1,346,245 = 1,346,245/x
3. Step 3: Cross multiply
   915,790x = 1,346,245 × 1,346,245
4. Step 4: Simplify right side
   915,790x = 1,812,375,600,025
5. Step 5: Solve for x
   x = 1,812,375,600,025/915,790
6. Step 6: Final answer
   x = 1,979,029.69