Finding the Third Proportional to 242,149.50 and 478,089

Step by Step Solution

1. Step 1: Write the proportion equation
   242,149.50 : 478,089 = 478,089 : x
2. Step 2: Convert to fraction form
   242,149.50/478,089 = 478,089/x
3. Step 3: Cross multiply
   242,149.50x = 478,089 × 478,089
4. Step 4: Simplify right side
   242,149.50x = 228,569,091,921
5. Step 5: Solve for x
   x = 228,569,091,921/242,149.50
6. Step 6: Final answer
   x = 943,917.26