Finding the Third Proportional to 1,418,069 and 2,128,134

Step by Step Solution

1. Step 1: Write the proportion equation
   1,418,069 : 2,128,134 = 2,128,134 : x
2. Step 2: Convert to fraction form
   1,418,069/2,128,134 = 2,128,134/x
3. Step 3: Cross multiply
   1,418,069x = 2,128,134 × 2,128,134
4. Step 4: Simplify right side
   1,418,069x = 4,528,954,321,956
5. Step 5: Solve for x
   x = 4,528,954,321,956/1,418,069
6. Step 6: Final answer
   x = 3,193,747.50