Finding the Third Proportional to 411,436 and 545,932

Step by Step Solution

1. Step 1: Write the proportion equation
   411,436 : 545,932 = 545,932 : x
2. Step 2: Convert to fraction form
   411,436/545,932 = 545,932/x
3. Step 3: Cross multiply
   411,436x = 545,932 × 545,932
4. Step 4: Simplify right side
   411,436x = 298,041,748,624
5. Step 5: Solve for x
   x = 298,041,748,624/411,436
6. Step 6: Final answer
   x = 724,393.95