Finding the Third Proportional to 414,383.50 and 623,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   414,383.50 : 623,118.50 = 623,118.50 : x
2. Step 2: Convert to fraction form
   414,383.50/623,118.50 = 623,118.50/x
3. Step 3: Cross multiply
   414,383.50x = 623,118.50 × 623,118.50
4. Step 4: Simplify right side
   414,383.50x = 388,276,665,042.25
5. Step 5: Solve for x
   x = 388,276,665,042.25/414,383.50
6. Step 6: Final answer
   x = 936,998.37