Finding the Third Proportional to 689,632 and 1,063,520

Step by Step Solution

1. Step 1: Write the proportion equation
   689,632 : 1,063,520 = 1,063,520 : x
2. Step 2: Convert to fraction form
   689,632/1,063,520 = 1,063,520/x
3. Step 3: Cross multiply
   689,632x = 1,063,520 × 1,063,520
4. Step 4: Simplify right side
   689,632x = 1,131,074,790,400
5. Step 5: Solve for x
   x = 1,131,074,790,400/689,632
6. Step 6: Final answer
   x = 1,640,113.55