Finding the Third Proportional to 835,140 and 1,291,090

Step by Step Solution

1. Step 1: Write the proportion equation
   835,140 : 1,291,090 = 1,291,090 : x
2. Step 2: Convert to fraction form
   835,140/1,291,090 = 1,291,090/x
3. Step 3: Cross multiply
   835,140x = 1,291,090 × 1,291,090
4. Step 4: Simplify right side
   835,140x = 1,666,913,388,100
5. Step 5: Solve for x
   x = 1,666,913,388,100/835,140
6. Step 6: Final answer
   x = 1,995,968.81