Finding the Third Proportional to 242,493.50 and 521,461

Step by Step Solution

1. Step 1: Write the proportion equation
   242,493.50 : 521,461 = 521,461 : x
2. Step 2: Convert to fraction form
   242,493.50/521,461 = 521,461/x
3. Step 3: Cross multiply
   242,493.50x = 521,461 × 521,461
4. Step 4: Simplify right side
   242,493.50x = 271,921,574,521
5. Step 5: Solve for x
   x = 271,921,574,521/242,493.50
6. Step 6: Final answer
   x = 1,121,356.14