Finding the Third Proportional to 101,917.50 and 216,168

Step by Step Solution

1. Step 1: Write the proportion equation
   101,917.50 : 216,168 = 216,168 : x
2. Step 2: Convert to fraction form
   101,917.50/216,168 = 216,168/x
3. Step 3: Cross multiply
   101,917.50x = 216,168 × 216,168
4. Step 4: Simplify right side
   101,917.50x = 46,728,604,224
5. Step 5: Solve for x
   x = 46,728,604,224/101,917.50
6. Step 6: Final answer
   x = 458,494.41