Finding the Third Proportional to 455,367 and 679,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   455,367 : 679,357.50 = 679,357.50 : x
2. Step 2: Convert to fraction form
   455,367/679,357.50 = 679,357.50/x
3. Step 3: Cross multiply
   455,367x = 679,357.50 × 679,357.50
4. Step 4: Simplify right side
   455,367x = 461,526,612,806.25
5. Step 5: Solve for x
   x = 461,526,612,806.25/455,367
6. Step 6: Final answer
   x = 1,013,526.70