Finding the Third Proportional to 480,780 and 1,028,264

Step by Step Solution

1. Step 1: Write the proportion equation
   480,780 : 1,028,264 = 1,028,264 : x
2. Step 2: Convert to fraction form
   480,780/1,028,264 = 1,028,264/x
3. Step 3: Cross multiply
   480,780x = 1,028,264 × 1,028,264
4. Step 4: Simplify right side
   480,780x = 1,057,326,853,696
5. Step 5: Solve for x
   x = 1,057,326,853,696/480,780
6. Step 6: Final answer
   x = 2,199,190.59