Finding the Third Proportional to 72,459 and 154,547.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,459 : 154,547.50 = 154,547.50 : x
2. Step 2: Convert to fraction form
   72,459/154,547.50 = 154,547.50/x
3. Step 3: Cross multiply
   72,459x = 154,547.50 × 154,547.50
4. Step 4: Simplify right side
   72,459x = 23,884,929,756.25
5. Step 5: Solve for x
   x = 23,884,929,756.25/72,459
6. Step 6: Final answer
   x = 329,633.72