Finding the Third Proportional to 917,118 and 1,223,154

Step by Step Solution

1. Step 1: Write the proportion equation
   917,118 : 1,223,154 = 1,223,154 : x
2. Step 2: Convert to fraction form
   917,118/1,223,154 = 1,223,154/x
3. Step 3: Cross multiply
   917,118x = 1,223,154 × 1,223,154
4. Step 4: Simplify right side
   917,118x = 1,496,105,707,716
5. Step 5: Solve for x
   x = 1,496,105,707,716/917,118
6. Step 6: Final answer
   x = 1,631,312.12