Finding the Third Proportional to 1,399,692 and 2,099,160

Step by Step Solution

1. Step 1: Write the proportion equation
   1,399,692 : 2,099,160 = 2,099,160 : x
2. Step 2: Convert to fraction form
   1,399,692/2,099,160 = 2,099,160/x
3. Step 3: Cross multiply
   1,399,692x = 2,099,160 × 2,099,160
4. Step 4: Simplify right side
   1,399,692x = 4,406,472,705,600
5. Step 5: Solve for x
   x = 4,406,472,705,600/1,399,692
6. Step 6: Final answer
   x = 3,148,173.10