Finding the Third Proportional to 451,459.50 and 619,063

Step by Step Solution

1. Step 1: Write the proportion equation
   451,459.50 : 619,063 = 619,063 : x
2. Step 2: Convert to fraction form
   451,459.50/619,063 = 619,063/x
3. Step 3: Cross multiply
   451,459.50x = 619,063 × 619,063
4. Step 4: Simplify right side
   451,459.50x = 383,238,997,969
5. Step 5: Solve for x
   x = 383,238,997,969/451,459.50
6. Step 6: Final answer
   x = 848,888.99