Finding the Third Proportional to 400,841.50 and 601,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,841.50 : 601,789.50 = 601,789.50 : x
2. Step 2: Convert to fraction form
   400,841.50/601,789.50 = 601,789.50/x
3. Step 3: Cross multiply
   400,841.50x = 601,789.50 × 601,789.50
4. Step 4: Simplify right side
   400,841.50x = 362,150,602,310.25
5. Step 5: Solve for x
   x = 362,150,602,310.25/400,841.50
6. Step 6: Final answer
   x = 903,475.82