Finding the Third Proportional to 870,288 and 1,267,560

Step by Step Solution

1. Step 1: Write the proportion equation
   870,288 : 1,267,560 = 1,267,560 : x
2. Step 2: Convert to fraction form
   870,288/1,267,560 = 1,267,560/x
3. Step 3: Cross multiply
   870,288x = 1,267,560 × 1,267,560
4. Step 4: Simplify right side
   870,288x = 1,606,708,353,600
5. Step 5: Solve for x
   x = 1,606,708,353,600/870,288
6. Step 6: Final answer
   x = 1,846,180.06