Finding the Third Proportional to 406,808.50 and 841,905

Step by Step Solution

1. Step 1: Write the proportion equation
   406,808.50 : 841,905 = 841,905 : x
2. Step 2: Convert to fraction form
   406,808.50/841,905 = 841,905/x
3. Step 3: Cross multiply
   406,808.50x = 841,905 × 841,905
4. Step 4: Simplify right side
   406,808.50x = 708,804,029,025
5. Step 5: Solve for x
   x = 708,804,029,025/406,808.50
6. Step 6: Final answer
   x = 1,742,353.05