Finding the Third Proportional to 72,495 and 147,028.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,495 : 147,028.50 = 147,028.50 : x
2. Step 2: Convert to fraction form
   72,495/147,028.50 = 147,028.50/x
3. Step 3: Cross multiply
   72,495x = 147,028.50 × 147,028.50
4. Step 4: Simplify right side
   72,495x = 21,617,379,812.25
5. Step 5: Solve for x
   x = 21,617,379,812.25/72,495
6. Step 6: Final answer
   x = 298,191.32