Finding the Third Proportional to 516,144 and 1,111,386

Step by Step Solution

1. Step 1: Write the proportion equation
   516,144 : 1,111,386 = 1,111,386 : x
2. Step 2: Convert to fraction form
   516,144/1,111,386 = 1,111,386/x
3. Step 3: Cross multiply
   516,144x = 1,111,386 × 1,111,386
4. Step 4: Simplify right side
   516,144x = 1,235,178,840,996
5. Step 5: Solve for x
   x = 1,235,178,840,996/516,144
6. Step 6: Final answer
   x = 2,393,089.60