Finding the Third Proportional to 412,028 and 637,904.50

Step by Step Solution

1. Step 1: Write the proportion equation
   412,028 : 637,904.50 = 637,904.50 : x
2. Step 2: Convert to fraction form
   412,028/637,904.50 = 637,904.50/x
3. Step 3: Cross multiply
   412,028x = 637,904.50 × 637,904.50
4. Step 4: Simplify right side
   412,028x = 406,922,151,120.25
5. Step 5: Solve for x
   x = 406,922,151,120.25/412,028
6. Step 6: Final answer
   x = 987,608.01