Finding the Third Proportional to 355,654.50 and 545,322

Step by Step Solution

1. Step 1: Write the proportion equation
   355,654.50 : 545,322 = 545,322 : x
2. Step 2: Convert to fraction form
   355,654.50/545,322 = 545,322/x
3. Step 3: Cross multiply
   355,654.50x = 545,322 × 545,322
4. Step 4: Simplify right side
   355,654.50x = 297,376,083,684
5. Step 5: Solve for x
   x = 297,376,083,684/355,654.50
6. Step 6: Final answer
   x = 836,137.55