Finding the Third Proportional to 427,899.38 and 666,385.52

Step by Step Solution

1. Step 1: Write the proportion equation
   427,899.38 : 666,385.52 = 666,385.52 : x
2. Step 2: Convert to fraction form
   427,899.38/666,385.52 = 666,385.52/x
3. Step 3: Cross multiply
   427,899.38x = 666,385.52 × 666,385.52
4. Step 4: Simplify right side
   427,899.38x = 444,069,665,847.07
5. Step 5: Solve for x
   x = 444,069,665,847.07/427,899.38
6. Step 6: Final answer
   x = 1,037,789.94