Finding the Third Proportional to 403,744.50 and 619,756.31

Step by Step Solution

1. Step 1: Write the proportion equation
   403,744.50 : 619,756.31 = 619,756.31 : x
2. Step 2: Convert to fraction form
   403,744.50/619,756.31 = 619,756.31/x
3. Step 3: Cross multiply
   403,744.50x = 619,756.31 × 619,756.31
4. Step 4: Simplify right side
   403,744.50x = 384,097,886,883.60
5. Step 5: Solve for x
   x = 384,097,886,883.60/403,744.50
6. Step 6: Final answer
   x = 951,339.00