Finding the Third Proportional to 770,364 and 1,109,640

Step by Step Solution

1. Step 1: Write the proportion equation
   770,364 : 1,109,640 = 1,109,640 : x
2. Step 2: Convert to fraction form
   770,364/1,109,640 = 1,109,640/x
3. Step 3: Cross multiply
   770,364x = 1,109,640 × 1,109,640
4. Step 4: Simplify right side
   770,364x = 1,231,300,929,600
5. Step 5: Solve for x
   x = 1,231,300,929,600/770,364
6. Step 6: Final answer
   x = 1,598,336.54