Finding the Third Proportional to 407,028 and 598,354.50

Step by Step Solution

1. Step 1: Write the proportion equation
   407,028 : 598,354.50 = 598,354.50 : x
2. Step 2: Convert to fraction form
   407,028/598,354.50 = 598,354.50/x
3. Step 3: Cross multiply
   407,028x = 598,354.50 × 598,354.50
4. Step 4: Simplify right side
   407,028x = 358,028,107,670.25
5. Step 5: Solve for x
   x = 358,028,107,670.25/407,028
6. Step 6: Final answer
   x = 879,615.43