Finding the Third Proportional to 571,815 and 841,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   571,815 : 841,090.50 = 841,090.50 : x
2. Step 2: Convert to fraction form
   571,815/841,090.50 = 841,090.50/x
3. Step 3: Cross multiply
   571,815x = 841,090.50 × 841,090.50
4. Step 4: Simplify right side
   571,815x = 707,433,229,190.25
5. Step 5: Solve for x
   x = 707,433,229,190.25/571,815
6. Step 6: Final answer
   x = 1,237,171.51