Finding the Third Proportional to 359,040 and 546,336

Step by Step Solution

1. Step 1: Write the proportion equation
   359,040 : 546,336 = 546,336 : x
2. Step 2: Convert to fraction form
   359,040/546,336 = 546,336/x
3. Step 3: Cross multiply
   359,040x = 546,336 × 546,336
4. Step 4: Simplify right side
   359,040x = 298,483,024,896
5. Step 5: Solve for x
   x = 298,483,024,896/359,040
6. Step 6: Final answer
   x = 831,336.41