Finding the Third Proportional to 323,905.50 and 706,761

Step by Step Solution

1. Step 1: Write the proportion equation
   323,905.50 : 706,761 = 706,761 : x
2. Step 2: Convert to fraction form
   323,905.50/706,761 = 706,761/x
3. Step 3: Cross multiply
   323,905.50x = 706,761 × 706,761
4. Step 4: Simplify right side
   323,905.50x = 499,511,111,121
5. Step 5: Solve for x
   x = 499,511,111,121/323,905.50
6. Step 6: Final answer
   x = 1,542,150.75