Finding the Third Proportional to 810,138 and 1,772,768

Step by Step Solution

1. Step 1: Write the proportion equation
   810,138 : 1,772,768 = 1,772,768 : x
2. Step 2: Convert to fraction form
   810,138/1,772,768 = 1,772,768/x
3. Step 3: Cross multiply
   810,138x = 1,772,768 × 1,772,768
4. Step 4: Simplify right side
   810,138x = 3,142,706,381,824
5. Step 5: Solve for x
   x = 3,142,706,381,824/810,138
6. Step 6: Final answer
   x = 3,879,223.52