Finding the Third Proportional to 918,186 and 1,231,479

Step by Step Solution

1. Step 1: Write the proportion equation
   918,186 : 1,231,479 = 1,231,479 : x
2. Step 2: Convert to fraction form
   918,186/1,231,479 = 1,231,479/x
3. Step 3: Cross multiply
   918,186x = 1,231,479 × 1,231,479
4. Step 4: Simplify right side
   918,186x = 1,516,540,527,441
5. Step 5: Solve for x
   x = 1,516,540,527,441/918,186
6. Step 6: Final answer
   x = 1,651,670.28