Finding the Third Proportional to 3,061.50 and 6,389.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,061.50 : 6,389.06 = 6,389.06 : x
2. Step 2: Convert to fraction form
   3,061.50/6,389.06 = 6,389.06/x
3. Step 3: Cross multiply
   3,061.50x = 6,389.06 × 6,389.06
4. Step 4: Simplify right side
   3,061.50x = 40,820,119.63
5. Step 5: Solve for x
   x = 40,820,119.63/3,061.50
6. Step 6: Final answer
   x = 13,333.37