Finding the Third Proportional to 646,652 and 1,409,116

Step by Step Solution

1. Step 1: Write the proportion equation
   646,652 : 1,409,116 = 1,409,116 : x
2. Step 2: Convert to fraction form
   646,652/1,409,116 = 1,409,116/x
3. Step 3: Cross multiply
   646,652x = 1,409,116 × 1,409,116
4. Step 4: Simplify right side
   646,652x = 1,985,607,901,456
5. Step 5: Solve for x
   x = 1,985,607,901,456/646,652
6. Step 6: Final answer
   x = 3,070,597.33