Finding the Third Proportional to 619,056 and 1,312,608

Step by Step Solution

1. Step 1: Write the proportion equation
   619,056 : 1,312,608 = 1,312,608 : x
2. Step 2: Convert to fraction form
   619,056/1,312,608 = 1,312,608/x
3. Step 3: Cross multiply
   619,056x = 1,312,608 × 1,312,608
4. Step 4: Simplify right side
   619,056x = 1,722,939,761,664
5. Step 5: Solve for x
   x = 1,722,939,761,664/619,056
6. Step 6: Final answer
   x = 2,783,172.70