Finding the Third Proportional to 175,557 and 389,076

Step by Step Solution

1. Step 1: Write the proportion equation
   175,557 : 389,076 = 389,076 : x
2. Step 2: Convert to fraction form
   175,557/389,076 = 389,076/x
3. Step 3: Cross multiply
   175,557x = 389,076 × 389,076
4. Step 4: Simplify right side
   175,557x = 151,380,133,776
5. Step 5: Solve for x
   x = 151,380,133,776/175,557
6. Step 6: Final answer
   x = 862,284.81