Finding the Third Proportional to 65,124 and 142,715.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,124 : 142,715.25 = 142,715.25 : x
2. Step 2: Convert to fraction form
   65,124/142,715.25 = 142,715.25/x
3. Step 3: Cross multiply
   65,124x = 142,715.25 × 142,715.25
4. Step 4: Simplify right side
   65,124x = 20,367,642,582.56
5. Step 5: Solve for x
   x = 20,367,642,582.56/65,124
6. Step 6: Final answer
   x = 312,751.71