Finding the Third Proportional to 584,278 and 1,227,590

Step by Step Solution

1. Step 1: Write the proportion equation
   584,278 : 1,227,590 = 1,227,590 : x
2. Step 2: Convert to fraction form
   584,278/1,227,590 = 1,227,590/x
3. Step 3: Cross multiply
   584,278x = 1,227,590 × 1,227,590
4. Step 4: Simplify right side
   584,278x = 1,506,977,208,100
5. Step 5: Solve for x
   x = 1,506,977,208,100/584,278
6. Step 6: Final answer
   x = 2,579,212.65