Finding the Third Proportional to 381,747 and 572,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   381,747 : 572,386.50 = 572,386.50 : x
2. Step 2: Convert to fraction form
   381,747/572,386.50 = 572,386.50/x
3. Step 3: Cross multiply
   381,747x = 572,386.50 × 572,386.50
4. Step 4: Simplify right side
   381,747x = 327,626,305,382.25
5. Step 5: Solve for x
   x = 327,626,305,382.25/381,747
6. Step 6: Final answer
   x = 858,228.89