Finding the Third Proportional to 381,561 and 607,371.75

Step by Step Solution

1. Step 1: Write the proportion equation
   381,561 : 607,371.75 = 607,371.75 : x
2. Step 2: Convert to fraction form
   381,561/607,371.75 = 607,371.75/x
3. Step 3: Cross multiply
   381,561x = 607,371.75 × 607,371.75
4. Step 4: Simplify right side
   381,561x = 368,900,442,698.06
5. Step 5: Solve for x
   x = 368,900,442,698.06/381,561
6. Step 6: Final answer
   x = 966,819.05