Finding the Third Proportional to 810,139 and 1,772,770

Step by Step Solution

1. Step 1: Write the proportion equation
   810,139 : 1,772,770 = 1,772,770 : x
2. Step 2: Convert to fraction form
   810,139/1,772,770 = 1,772,770/x
3. Step 3: Cross multiply
   810,139x = 1,772,770 × 1,772,770
4. Step 4: Simplify right side
   810,139x = 3,142,713,472,900
5. Step 5: Solve for x
   x = 3,142,713,472,900/810,139
6. Step 6: Final answer
   x = 3,879,227.48