Finding the Third Proportional to 90,301.50 and 137,855.25

Step by Step Solution

1. Step 1: Write the proportion equation
   90,301.50 : 137,855.25 = 137,855.25 : x
2. Step 2: Convert to fraction form
   90,301.50/137,855.25 = 137,855.25/x
3. Step 3: Cross multiply
   90,301.50x = 137,855.25 × 137,855.25
4. Step 4: Simplify right side
   90,301.50x = 19,004,069,952.56
5. Step 5: Solve for x
   x = 19,004,069,952.56/90,301.50
6. Step 6: Final answer
   x = 210,451.32