Finding the Third Proportional to 261,838.50 and 563,772

Step by Step Solution

1. Step 1: Write the proportion equation
   261,838.50 : 563,772 = 563,772 : x
2. Step 2: Convert to fraction form
   261,838.50/563,772 = 563,772/x
3. Step 3: Cross multiply
   261,838.50x = 563,772 × 563,772
4. Step 4: Simplify right side
   261,838.50x = 317,838,867,984
5. Step 5: Solve for x
   x = 317,838,867,984/261,838.50
6. Step 6: Final answer
   x = 1,213,873.70