Finding the Third Proportional to 341,118 and 511,717.50

Step by Step Solution

1. Step 1: Write the proportion equation
   341,118 : 511,717.50 = 511,717.50 : x
2. Step 2: Convert to fraction form
   341,118/511,717.50 = 511,717.50/x
3. Step 3: Cross multiply
   341,118x = 511,717.50 × 511,717.50
4. Step 4: Simplify right side
   341,118x = 261,854,799,806.25
5. Step 5: Solve for x
   x = 261,854,799,806.25/341,118
6. Step 6: Final answer
   x = 767,637.00