Finding the Third Proportional to 171,615 and 262,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,615 : 262,528.50 = 262,528.50 : x
2. Step 2: Convert to fraction form
   171,615/262,528.50 = 262,528.50/x
3. Step 3: Cross multiply
   171,615x = 262,528.50 × 262,528.50
4. Step 4: Simplify right side
   171,615x = 68,921,213,312.25
5. Step 5: Solve for x
   x = 68,921,213,312.25/171,615
6. Step 6: Final answer
   x = 401,603.67