Finding the Third Proportional to 131,275.69 and 275,779.69

Step by Step Solution

1. Step 1: Write the proportion equation
   131,275.69 : 275,779.69 = 275,779.69 : x
2. Step 2: Convert to fraction form
   131,275.69/275,779.69 = 275,779.69/x
3. Step 3: Cross multiply
   131,275.69x = 275,779.69 × 275,779.69
4. Step 4: Simplify right side
   131,275.69x = 76,054,436,037.60
5. Step 5: Solve for x
   x = 76,054,436,037.60/131,275.69
6. Step 6: Final answer
   x = 579,348.98