Finding the Third Proportional to 89,814 and 134,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,814 : 134,720.50 = 134,720.50 : x
2. Step 2: Convert to fraction form
   89,814/134,720.50 = 134,720.50/x
3. Step 3: Cross multiply
   89,814x = 134,720.50 × 134,720.50
4. Step 4: Simplify right side
   89,814x = 18,149,613,120.25
5. Step 5: Solve for x
   x = 18,149,613,120.25/89,814
6. Step 6: Final answer
   x = 202,080.00