Finding the Third Proportional to 688,920 and 1,006,158

Step by Step Solution

1. Step 1: Write the proportion equation
   688,920 : 1,006,158 = 1,006,158 : x
2. Step 2: Convert to fraction form
   688,920/1,006,158 = 1,006,158/x
3. Step 3: Cross multiply
   688,920x = 1,006,158 × 1,006,158
4. Step 4: Simplify right side
   688,920x = 1,012,353,920,964
5. Step 5: Solve for x
   x = 1,012,353,920,964/688,920
6. Step 6: Final answer
   x = 1,469,479.65