Finding the Third Proportional to 153,559.50 and 236,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   153,559.50 : 236,899.50 = 236,899.50 : x
2. Step 2: Convert to fraction form
   153,559.50/236,899.50 = 236,899.50/x
3. Step 3: Cross multiply
   153,559.50x = 236,899.50 × 236,899.50
4. Step 4: Simplify right side
   153,559.50x = 56,121,373,100.25
5. Step 5: Solve for x
   x = 56,121,373,100.25/153,559.50
6. Step 6: Final answer
   x = 365,469.89