Finding the Third Proportional to 619,500 and 911,106

Step by Step Solution

1. Step 1: Write the proportion equation
   619,500 : 911,106 = 911,106 : x
2. Step 2: Convert to fraction form
   619,500/911,106 = 911,106/x
3. Step 3: Cross multiply
   619,500x = 911,106 × 911,106
4. Step 4: Simplify right side
   619,500x = 830,114,143,236
5. Step 5: Solve for x
   x = 830,114,143,236/619,500
6. Step 6: Final answer
   x = 1,339,974.40