Finding the Third Proportional to 206,523 and 437,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   206,523 : 437,818.50 = 437,818.50 : x
2. Step 2: Convert to fraction form
   206,523/437,818.50 = 437,818.50/x
3. Step 3: Cross multiply
   206,523x = 437,818.50 × 437,818.50
4. Step 4: Simplify right side
   206,523x = 191,685,038,942.25
5. Step 5: Solve for x
   x = 191,685,038,942.25/206,523
6. Step 6: Final answer
   x = 928,153.47