Finding the Third Proportional to 917,197 and 1,321,105.50

Step by Step Solution

1. Step 1: Write the proportion equation
   917,197 : 1,321,105.50 = 1,321,105.50 : x
2. Step 2: Convert to fraction form
   917,197/1,321,105.50 = 1,321,105.50/x
3. Step 3: Cross multiply
   917,197x = 1,321,105.50 × 1,321,105.50
4. Step 4: Simplify right side
   917,197x = 1,745,319,742,130.25
5. Step 5: Solve for x
   x = 1,745,319,742,130.25/917,197
6. Step 6: Final answer
   x = 1,902,884.27