Finding the Third Proportional to 73,162.50 and 109,431

Step by Step Solution

1. Step 1: Write the proportion equation
   73,162.50 : 109,431 = 109,431 : x
2. Step 2: Convert to fraction form
   73,162.50/109,431 = 109,431/x
3. Step 3: Cross multiply
   73,162.50x = 109,431 × 109,431
4. Step 4: Simplify right side
   73,162.50x = 11,975,143,761
5. Step 5: Solve for x
   x = 11,975,143,761/73,162.50
6. Step 6: Final answer
   x = 163,678.71