Finding the Third Proportional to 1,217,692 and 1,910,130

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,692 : 1,910,130 = 1,910,130 : x
2. Step 2: Convert to fraction form
   1,217,692/1,910,130 = 1,910,130/x
3. Step 3: Cross multiply
   1,217,692x = 1,910,130 × 1,910,130
4. Step 4: Simplify right side
   1,217,692x = 3,648,596,616,900
5. Step 5: Solve for x
   x = 3,648,596,616,900/1,217,692
6. Step 6: Final answer
   x = 2,996,321.42