Finding the Third Proportional to 356,845.50 and 525,411.56

Step by Step Solution

1. Step 1: Write the proportion equation
   356,845.50 : 525,411.56 = 525,411.56 : x
2. Step 2: Convert to fraction form
   356,845.50/525,411.56 = 525,411.56/x
3. Step 3: Cross multiply
   356,845.50x = 525,411.56 × 525,411.56
4. Step 4: Simplify right side
   356,845.50x = 276,057,310,008.69
5. Step 5: Solve for x
   x = 276,057,310,008.69/356,845.50
6. Step 6: Final answer
   x = 773,604.57