Finding the Third Proportional to 297,356.25 and 478,788

Step by Step Solution

1. Step 1: Write the proportion equation
   297,356.25 : 478,788 = 478,788 : x
2. Step 2: Convert to fraction form
   297,356.25/478,788 = 478,788/x
3. Step 3: Cross multiply
   297,356.25x = 478,788 × 478,788
4. Step 4: Simplify right side
   297,356.25x = 229,237,948,944
5. Step 5: Solve for x
   x = 229,237,948,944/297,356.25
6. Step 6: Final answer
   x = 770,920.23