Finding the Third Proportional to 428,841.50 and 913,147

Step by Step Solution

1. Step 1: Write the proportion equation
   428,841.50 : 913,147 = 913,147 : x
2. Step 2: Convert to fraction form
   428,841.50/913,147 = 913,147/x
3. Step 3: Cross multiply
   428,841.50x = 913,147 × 913,147
4. Step 4: Simplify right side
   428,841.50x = 833,837,443,609
5. Step 5: Solve for x
   x = 833,837,443,609/428,841.50
6. Step 6: Final answer
   x = 1,944,395.41