Finding the Third Proportional to 688,294 and 1,036,606

Step by Step Solution

1. Step 1: Write the proportion equation
   688,294 : 1,036,606 = 1,036,606 : x
2. Step 2: Convert to fraction form
   688,294/1,036,606 = 1,036,606/x
3. Step 3: Cross multiply
   688,294x = 1,036,606 × 1,036,606
4. Step 4: Simplify right side
   688,294x = 1,074,551,999,236
5. Step 5: Solve for x
   x = 1,074,551,999,236/688,294
6. Step 6: Final answer
   x = 1,561,181.70