Finding the Third Proportional to 356,404.50 and 738,071.72

Step by Step Solution

1. Step 1: Write the proportion equation
   356,404.50 : 738,071.72 = 738,071.72 : x
2. Step 2: Convert to fraction form
   356,404.50/738,071.72 = 738,071.72/x
3. Step 3: Cross multiply
   356,404.50x = 738,071.72 × 738,071.72
4. Step 4: Simplify right side
   356,404.50x = 544,749,862,018.58
5. Step 5: Solve for x
   x = 544,749,862,018.58/356,404.50
6. Step 6: Final answer
   x = 1,528,459.55