Finding the Third Proportional to 321,732 and 635,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,732 : 635,377.50 = 635,377.50 : x
2. Step 2: Convert to fraction form
   321,732/635,377.50 = 635,377.50/x
3. Step 3: Cross multiply
   321,732x = 635,377.50 × 635,377.50
4. Step 4: Simplify right side
   321,732x = 403,704,567,506.25
5. Step 5: Solve for x
   x = 403,704,567,506.25/321,732
6. Step 6: Final answer
   x = 1,254,785.25