Finding the Third Proportional to 189,725.50 and 404,030

Step by Step Solution

1. Step 1: Write the proportion equation
   189,725.50 : 404,030 = 404,030 : x
2. Step 2: Convert to fraction form
   189,725.50/404,030 = 404,030/x
3. Step 3: Cross multiply
   189,725.50x = 404,030 × 404,030
4. Step 4: Simplify right side
   189,725.50x = 163,240,240,900
5. Step 5: Solve for x
   x = 163,240,240,900/189,725.50
6. Step 6: Final answer
   x = 860,402.22