Finding the Third Proportional to 98,615 and 215,662

Step by Step Solution

1. Step 1: Write the proportion equation
   98,615 : 215,662 = 215,662 : x
2. Step 2: Convert to fraction form
   98,615/215,662 = 215,662/x
3. Step 3: Cross multiply
   98,615x = 215,662 × 215,662
4. Step 4: Simplify right side
   98,615x = 46,510,098,244
5. Step 5: Solve for x
   x = 46,510,098,244/98,615
6. Step 6: Final answer
   x = 471,633.10