Finding the Third Proportional to 249,679 and 365,173.50

Step by Step Solution

1. Step 1: Write the proportion equation
   249,679 : 365,173.50 = 365,173.50 : x
2. Step 2: Convert to fraction form
   249,679/365,173.50 = 365,173.50/x
3. Step 3: Cross multiply
   249,679x = 365,173.50 × 365,173.50
4. Step 4: Simplify right side
   249,679x = 133,351,685,102.25
5. Step 5: Solve for x
   x = 133,351,685,102.25/249,679
6. Step 6: Final answer
   x = 534,092.52