Finding the Third Proportional to 865,332 and 1,290,798

Step by Step Solution

1. Step 1: Write the proportion equation
   865,332 : 1,290,798 = 1,290,798 : x
2. Step 2: Convert to fraction form
   865,332/1,290,798 = 1,290,798/x
3. Step 3: Cross multiply
   865,332x = 1,290,798 × 1,290,798
4. Step 4: Simplify right side
   865,332x = 1,666,159,476,804
5. Step 5: Solve for x
   x = 1,666,159,476,804/865,332
6. Step 6: Final answer
   x = 1,925,456.91