Finding the Third Proportional to 688,060 and 1,042,470

Step by Step Solution

1. Step 1: Write the proportion equation
   688,060 : 1,042,470 = 1,042,470 : x
2. Step 2: Convert to fraction form
   688,060/1,042,470 = 1,042,470/x
3. Step 3: Cross multiply
   688,060x = 1,042,470 × 1,042,470
4. Step 4: Simplify right side
   688,060x = 1,086,743,700,900
5. Step 5: Solve for x
   x = 1,086,743,700,900/688,060
6. Step 6: Final answer
   x = 1,579,431.59