Finding the Third Proportional to 379,078.50 and 824,586

Step by Step Solution

1. Step 1: Write the proportion equation
   379,078.50 : 824,586 = 824,586 : x
2. Step 2: Convert to fraction form
   379,078.50/824,586 = 824,586/x
3. Step 3: Cross multiply
   379,078.50x = 824,586 × 824,586
4. Step 4: Simplify right side
   379,078.50x = 679,942,071,396
5. Step 5: Solve for x
   x = 679,942,071,396/379,078.50
6. Step 6: Final answer
   x = 1,793,670.89