Finding the Third Proportional to 69,820.50 and 150,713.25

Step by Step Solution

1. Step 1: Write the proportion equation
   69,820.50 : 150,713.25 = 150,713.25 : x
2. Step 2: Convert to fraction form
   69,820.50/150,713.25 = 150,713.25/x
3. Step 3: Cross multiply
   69,820.50x = 150,713.25 × 150,713.25
4. Step 4: Simplify right side
   69,820.50x = 22,714,483,725.56
5. Step 5: Solve for x
   x = 22,714,483,725.56/69,820.50
6. Step 6: Final answer
   x = 325,326.86