Finding the Third Proportional to 618,230 and 1,318,112

Step by Step Solution

1. Step 1: Write the proportion equation
   618,230 : 1,318,112 = 1,318,112 : x
2. Step 2: Convert to fraction form
   618,230/1,318,112 = 1,318,112/x
3. Step 3: Cross multiply
   618,230x = 1,318,112 × 1,318,112
4. Step 4: Simplify right side
   618,230x = 1,737,419,244,544
5. Step 5: Solve for x
   x = 1,737,419,244,544/618,230
6. Step 6: Final answer
   x = 2,810,312.09