Finding the Third Proportional to 243,388 and 363,056

Step by Step Solution

1. Step 1: Write the proportion equation
   243,388 : 363,056 = 363,056 : x
2. Step 2: Convert to fraction form
   243,388/363,056 = 363,056/x
3. Step 3: Cross multiply
   243,388x = 363,056 × 363,056
4. Step 4: Simplify right side
   243,388x = 131,809,659,136
5. Step 5: Solve for x
   x = 131,809,659,136/243,388
6. Step 6: Final answer
   x = 541,561.86