Finding the Third Proportional to 260,950.50 and 399,852

Step by Step Solution

1. Step 1: Write the proportion equation
   260,950.50 : 399,852 = 399,852 : x
2. Step 2: Convert to fraction form
   260,950.50/399,852 = 399,852/x
3. Step 3: Cross multiply
   260,950.50x = 399,852 × 399,852
4. Step 4: Simplify right side
   260,950.50x = 159,881,621,904
5. Step 5: Solve for x
   x = 159,881,621,904/260,950.50
6. Step 6: Final answer
   x = 612,689.46