Finding the Third Proportional to 166,274.50 and 243,516

Step by Step Solution

1. Step 1: Write the proportion equation
   166,274.50 : 243,516 = 243,516 : x
2. Step 2: Convert to fraction form
   166,274.50/243,516 = 243,516/x
3. Step 3: Cross multiply
   166,274.50x = 243,516 × 243,516
4. Step 4: Simplify right side
   166,274.50x = 59,300,042,256
5. Step 5: Solve for x
   x = 59,300,042,256/166,274.50
6. Step 6: Final answer
   x = 356,639.43