Finding the Third Proportional to 589,841.25 and 1,290,071.25

Step by Step Solution

1. Step 1: Write the proportion equation
   589,841.25 : 1,290,071.25 = 1,290,071.25 : x
2. Step 2: Convert to fraction form
   589,841.25/1,290,071.25 = 1,290,071.25/x
3. Step 3: Cross multiply
   589,841.25x = 1,290,071.25 × 1,290,071.25
4. Step 4: Simplify right side
   589,841.25x = 1,664,283,830,076.56
5. Step 5: Solve for x
   x = 1,664,283,830,076.56/589,841.25
6. Step 6: Final answer
   x = 2,821,579.25