Finding the Third Proportional to 85,860 and 133,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   85,860 : 133,447.50 = 133,447.50 : x
2. Step 2: Convert to fraction form
   85,860/133,447.50 = 133,447.50/x
3. Step 3: Cross multiply
   85,860x = 133,447.50 × 133,447.50
4. Step 4: Simplify right side
   85,860x = 17,808,235,256.25
5. Step 5: Solve for x
   x = 17,808,235,256.25/85,860
6. Step 6: Final answer
   x = 207,410.15