Finding the Third Proportional to 292,586 and 628,820.50

Step by Step Solution

1. Step 1: Write the proportion equation
   292,586 : 628,820.50 = 628,820.50 : x
2. Step 2: Convert to fraction form
   292,586/628,820.50 = 628,820.50/x
3. Step 3: Cross multiply
   292,586x = 628,820.50 × 628,820.50
4. Step 4: Simplify right side
   292,586x = 395,415,221,220.25
5. Step 5: Solve for x
   x = 395,415,221,220.25/292,586
6. Step 6: Final answer
   x = 1,351,449.56