Finding the Third Proportional to 767,121 and 1,615,116

Step by Step Solution

1. Step 1: Write the proportion equation
   767,121 : 1,615,116 = 1,615,116 : x
2. Step 2: Convert to fraction form
   767,121/1,615,116 = 1,615,116/x
3. Step 3: Cross multiply
   767,121x = 1,615,116 × 1,615,116
4. Step 4: Simplify right side
   767,121x = 2,608,599,693,456
5. Step 5: Solve for x
   x = 2,608,599,693,456/767,121
6. Step 6: Final answer
   x = 3,400,506.17