Finding the Third Proportional to 550,573.50 and 1,212,900

Step by Step Solution

1. Step 1: Write the proportion equation
   550,573.50 : 1,212,900 = 1,212,900 : x
2. Step 2: Convert to fraction form
   550,573.50/1,212,900 = 1,212,900/x
3. Step 3: Cross multiply
   550,573.50x = 1,212,900 × 1,212,900
4. Step 4: Simplify right side
   550,573.50x = 1,471,126,410,000
5. Step 5: Solve for x
   x = 1,471,126,410,000/550,573.50
6. Step 6: Final answer
   x = 2,671,989.13