Finding the Third Proportional to 90,967.50 and 143,136

Step by Step Solution

1. Step 1: Write the proportion equation
   90,967.50 : 143,136 = 143,136 : x
2. Step 2: Convert to fraction form
   90,967.50/143,136 = 143,136/x
3. Step 3: Cross multiply
   90,967.50x = 143,136 × 143,136
4. Step 4: Simplify right side
   90,967.50x = 20,487,914,496
5. Step 5: Solve for x
   x = 20,487,914,496/90,967.50
6. Step 6: Final answer
   x = 225,222.35