Finding the Third Proportional to 625,290 and 1,272,672

Step by Step Solution

1. Step 1: Write the proportion equation
   625,290 : 1,272,672 = 1,272,672 : x
2. Step 2: Convert to fraction form
   625,290/1,272,672 = 1,272,672/x
3. Step 3: Cross multiply
   625,290x = 1,272,672 × 1,272,672
4. Step 4: Simplify right side
   625,290x = 1,619,694,019,584
5. Step 5: Solve for x
   x = 1,619,694,019,584/625,290
6. Step 6: Final answer
   x = 2,590,308.53