Finding the Third Proportional to 915,660 and 1,400,706

Step by Step Solution

1. Step 1: Write the proportion equation
   915,660 : 1,400,706 = 1,400,706 : x
2. Step 2: Convert to fraction form
   915,660/1,400,706 = 1,400,706/x
3. Step 3: Cross multiply
   915,660x = 1,400,706 × 1,400,706
4. Step 4: Simplify right side
   915,660x = 1,961,977,298,436
5. Step 5: Solve for x
   x = 1,961,977,298,436/915,660
6. Step 6: Final answer
   x = 2,142,691.94