Finding the Third Proportional to 529,042.50 and 819,441

Step by Step Solution

1. Step 1: Write the proportion equation
   529,042.50 : 819,441 = 819,441 : x
2. Step 2: Convert to fraction form
   529,042.50/819,441 = 819,441/x
3. Step 3: Cross multiply
   529,042.50x = 819,441 × 819,441
4. Step 4: Simplify right side
   529,042.50x = 671,483,552,481
5. Step 5: Solve for x
   x = 671,483,552,481/529,042.50
6. Step 6: Final answer
   x = 1,269,243.12