Finding the Third Proportional to 810,140 and 1,772,772

Step by Step Solution

1. Step 1: Write the proportion equation
   810,140 : 1,772,772 = 1,772,772 : x
2. Step 2: Convert to fraction form
   810,140/1,772,772 = 1,772,772/x
3. Step 3: Cross multiply
   810,140x = 1,772,772 × 1,772,772
4. Step 4: Simplify right side
   810,140x = 3,142,720,563,984
5. Step 5: Solve for x
   x = 3,142,720,563,984/810,140
6. Step 6: Final answer
   x = 3,879,231.45