Finding the Third Proportional to 177,025.50 and 389,043

Step by Step Solution

1. Step 1: Write the proportion equation
   177,025.50 : 389,043 = 389,043 : x
2. Step 2: Convert to fraction form
   177,025.50/389,043 = 389,043/x
3. Step 3: Cross multiply
   177,025.50x = 389,043 × 389,043
4. Step 4: Simplify right side
   177,025.50x = 151,354,455,849
5. Step 5: Solve for x
   x = 151,354,455,849/177,025.50
6. Step 6: Final answer
   x = 854,986.74