Finding the Third Proportional to 690,078 and 1,501,656

Step by Step Solution

1. Step 1: Write the proportion equation
   690,078 : 1,501,656 = 1,501,656 : x
2. Step 2: Convert to fraction form
   690,078/1,501,656 = 1,501,656/x
3. Step 3: Cross multiply
   690,078x = 1,501,656 × 1,501,656
4. Step 4: Simplify right side
   690,078x = 2,254,970,742,336
5. Step 5: Solve for x
   x = 2,254,970,742,336/690,078
6. Step 6: Final answer
   x = 3,267,704.15