Finding the Third Proportional to 581,464 and 1,287,280

Step by Step Solution

1. Step 1: Write the proportion equation
   581,464 : 1,287,280 = 1,287,280 : x
2. Step 2: Convert to fraction form
   581,464/1,287,280 = 1,287,280/x
3. Step 3: Cross multiply
   581,464x = 1,287,280 × 1,287,280
4. Step 4: Simplify right side
   581,464x = 1,657,089,798,400
5. Step 5: Solve for x
   x = 1,657,089,798,400/581,464
6. Step 6: Final answer
   x = 2,849,857.94