Finding the Third Proportional to 618,196.50 and 1,318,050

Step by Step Solution

1. Step 1: Write the proportion equation
   618,196.50 : 1,318,050 = 1,318,050 : x
2. Step 2: Convert to fraction form
   618,196.50/1,318,050 = 1,318,050/x
3. Step 3: Cross multiply
   618,196.50x = 1,318,050 × 1,318,050
4. Step 4: Simplify right side
   618,196.50x = 1,737,255,802,500
5. Step 5: Solve for x
   x = 1,737,255,802,500/618,196.50
6. Step 6: Final answer
   x = 2,810,200.00