Finding the Third Proportional to 308,084.50 and 412,089

Step by Step Solution

1. Step 1: Write the proportion equation
   308,084.50 : 412,089 = 412,089 : x
2. Step 2: Convert to fraction form
   308,084.50/412,089 = 412,089/x
3. Step 3: Cross multiply
   308,084.50x = 412,089 × 412,089
4. Step 4: Simplify right side
   308,084.50x = 169,817,343,921
5. Step 5: Solve for x
   x = 169,817,343,921/308,084.50
6. Step 6: Final answer
   x = 551,203.79