Finding the Third Proportional to 158,431 and 230,512.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,431 : 230,512.50 = 230,512.50 : x
2. Step 2: Convert to fraction form
   158,431/230,512.50 = 230,512.50/x
3. Step 3: Cross multiply
   158,431x = 230,512.50 × 230,512.50
4. Step 4: Simplify right side
   158,431x = 53,136,012,656.25
5. Step 5: Solve for x
   x = 53,136,012,656.25/158,431
6. Step 6: Final answer
   x = 335,388.99