Finding the Third Proportional to 688,600 and 1,063,632

Step by Step Solution

1. Step 1: Write the proportion equation
   688,600 : 1,063,632 = 1,063,632 : x
2. Step 2: Convert to fraction form
   688,600/1,063,632 = 1,063,632/x
3. Step 3: Cross multiply
   688,600x = 1,063,632 × 1,063,632
4. Step 4: Simplify right side
   688,600x = 1,131,313,031,424
5. Step 5: Solve for x
   x = 1,131,313,031,424/688,600
6. Step 6: Final answer
   x = 1,642,917.56