Finding the Third Proportional to 689,328 and 1,506,672

Step by Step Solution

1. Step 1: Write the proportion equation
   689,328 : 1,506,672 = 1,506,672 : x
2. Step 2: Convert to fraction form
   689,328/1,506,672 = 1,506,672/x
3. Step 3: Cross multiply
   689,328x = 1,506,672 × 1,506,672
4. Step 4: Simplify right side
   689,328x = 2,270,060,515,584
5. Step 5: Solve for x
   x = 2,270,060,515,584/689,328
6. Step 6: Final answer
   x = 3,293,150.02