Finding the Third Proportional to 227,346 and 478,260

Step by Step Solution

1. Step 1: Write the proportion equation
   227,346 : 478,260 = 478,260 : x
2. Step 2: Convert to fraction form
   227,346/478,260 = 478,260/x
3. Step 3: Cross multiply
   227,346x = 478,260 × 478,260
4. Step 4: Simplify right side
   227,346x = 228,732,627,600
5. Step 5: Solve for x
   x = 228,732,627,600/227,346
6. Step 6: Final answer
   x = 1,006,099.20