Finding the Third Proportional to 551,099.25 and 843,012

Step by Step Solution

1. Step 1: Write the proportion equation
   551,099.25 : 843,012 = 843,012 : x
2. Step 2: Convert to fraction form
   551,099.25/843,012 = 843,012/x
3. Step 3: Cross multiply
   551,099.25x = 843,012 × 843,012
4. Step 4: Simplify right side
   551,099.25x = 710,669,232,144
5. Step 5: Solve for x
   x = 710,669,232,144/551,099.25
6. Step 6: Final answer
   x = 1,289,548.54