Finding the Third Proportional to 571,843 and 841,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   571,843 : 841,129.50 = 841,129.50 : x
2. Step 2: Convert to fraction form
   571,843/841,129.50 = 841,129.50/x
3. Step 3: Cross multiply
   571,843x = 841,129.50 × 841,129.50
4. Step 4: Simplify right side
   571,843x = 707,498,835,770.25
5. Step 5: Solve for x
   x = 707,498,835,770.25/571,843
6. Step 6: Final answer
   x = 1,237,225.66