Finding the Third Proportional to 91,452 and 137,421.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,452 : 137,421.50 = 137,421.50 : x
2. Step 2: Convert to fraction form
   91,452/137,421.50 = 137,421.50/x
3. Step 3: Cross multiply
   91,452x = 137,421.50 × 137,421.50
4. Step 4: Simplify right side
   91,452x = 18,884,668,662.25
5. Step 5: Solve for x
   x = 18,884,668,662.25/91,452
6. Step 6: Final answer
   x = 206,498.15