Finding the Third Proportional to 174,631.50 and 335,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   174,631.50 : 335,776.50 = 335,776.50 : x
2. Step 2: Convert to fraction form
   174,631.50/335,776.50 = 335,776.50/x
3. Step 3: Cross multiply
   174,631.50x = 335,776.50 × 335,776.50
4. Step 4: Simplify right side
   174,631.50x = 112,745,857,952.25
5. Step 5: Solve for x
   x = 112,745,857,952.25/174,631.50
6. Step 6: Final answer
   x = 645,621.54