Finding the Third Proportional to 870,048 and 1,225,242

Step by Step Solution

1. Step 1: Write the proportion equation
   870,048 : 1,225,242 = 1,225,242 : x
2. Step 2: Convert to fraction form
   870,048/1,225,242 = 1,225,242/x
3. Step 3: Cross multiply
   870,048x = 1,225,242 × 1,225,242
4. Step 4: Simplify right side
   870,048x = 1,501,217,958,564
5. Step 5: Solve for x
   x = 1,501,217,958,564/870,048
6. Step 6: Final answer
   x = 1,725,442.69