Finding the Third Proportional to 619,211.50 and 871,994

Step by Step Solution

1. Step 1: Write the proportion equation
   619,211.50 : 871,994 = 871,994 : x
2. Step 2: Convert to fraction form
   619,211.50/871,994 = 871,994/x
3. Step 3: Cross multiply
   619,211.50x = 871,994 × 871,994
4. Step 4: Simplify right side
   619,211.50x = 760,373,536,036
5. Step 5: Solve for x
   x = 760,373,536,036/619,211.50
6. Step 6: Final answer
   x = 1,227,970.63