Finding the Third Proportional to 583,671 and 788,890.50

Step by Step Solution

1. Step 1: Write the proportion equation
   583,671 : 788,890.50 = 788,890.50 : x
2. Step 2: Convert to fraction form
   583,671/788,890.50 = 788,890.50/x
3. Step 3: Cross multiply
   583,671x = 788,890.50 × 788,890.50
4. Step 4: Simplify right side
   583,671x = 622,348,220,990.25
5. Step 5: Solve for x
   x = 622,348,220,990.25/583,671
6. Step 6: Final answer
   x = 1,066,265.45