Finding the Third Proportional to 111,397.50 and 234,459

Step by Step Solution

1. Step 1: Write the proportion equation
   111,397.50 : 234,459 = 234,459 : x
2. Step 2: Convert to fraction form
   111,397.50/234,459 = 234,459/x
3. Step 3: Cross multiply
   111,397.50x = 234,459 × 234,459
4. Step 4: Simplify right side
   111,397.50x = 54,971,022,681
5. Step 5: Solve for x
   x = 54,971,022,681/111,397.50
6. Step 6: Final answer
   x = 493,467.29