Finding the Third Proportional to 101,182.50 and 212,787

Step by Step Solution

1. Step 1: Write the proportion equation
   101,182.50 : 212,787 = 212,787 : x
2. Step 2: Convert to fraction form
   101,182.50/212,787 = 212,787/x
3. Step 3: Cross multiply
   101,182.50x = 212,787 × 212,787
4. Step 4: Simplify right side
   101,182.50x = 45,278,307,369
5. Step 5: Solve for x
   x = 45,278,307,369/101,182.50
6. Step 6: Final answer
   x = 447,491.49