Finding the Third Proportional to 302,581.50 and 411,141

Step by Step Solution

1. Step 1: Write the proportion equation
   302,581.50 : 411,141 = 411,141 : x
2. Step 2: Convert to fraction form
   302,581.50/411,141 = 411,141/x
3. Step 3: Cross multiply
   302,581.50x = 411,141 × 411,141
4. Step 4: Simplify right side
   302,581.50x = 169,036,921,881
5. Step 5: Solve for x
   x = 169,036,921,881/302,581.50
6. Step 6: Final answer
   x = 558,649.23