Finding the Third Proportional to 163,407 and 231,232.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,407 : 231,232.50 = 231,232.50 : x
2. Step 2: Convert to fraction form
   163,407/231,232.50 = 231,232.50/x
3. Step 3: Cross multiply
   163,407x = 231,232.50 × 231,232.50
4. Step 4: Simplify right side
   163,407x = 53,468,469,056.25
5. Step 5: Solve for x
   x = 53,468,469,056.25/163,407
6. Step 6: Final answer
   x = 327,210.40