Finding the Third Proportional to 411,236.50 and 613,432

Step by Step Solution

1. Step 1: Write the proportion equation
   411,236.50 : 613,432 = 613,432 : x
2. Step 2: Convert to fraction form
   411,236.50/613,432 = 613,432/x
3. Step 3: Cross multiply
   411,236.50x = 613,432 × 613,432
4. Step 4: Simplify right side
   411,236.50x = 376,298,818,624
5. Step 5: Solve for x
   x = 376,298,818,624/411,236.50
6. Step 6: Final answer
   x = 915,042.36