Finding the Third Proportional to 87,615 and 116,464.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,615 : 116,464.50 = 116,464.50 : x
2. Step 2: Convert to fraction form
   87,615/116,464.50 = 116,464.50/x
3. Step 3: Cross multiply
   87,615x = 116,464.50 × 116,464.50
4. Step 4: Simplify right side
   87,615x = 13,563,979,760.25
5. Step 5: Solve for x
   x = 13,563,979,760.25/87,615
6. Step 6: Final answer
   x = 154,813.44