Finding the Third Proportional to 689,080 and 1,010,251

Step by Step Solution

1. Step 1: Write the proportion equation
   689,080 : 1,010,251 = 1,010,251 : x
2. Step 2: Convert to fraction form
   689,080/1,010,251 = 1,010,251/x
3. Step 3: Cross multiply
   689,080x = 1,010,251 × 1,010,251
4. Step 4: Simplify right side
   689,080x = 1,020,607,083,001
5. Step 5: Solve for x
   x = 1,020,607,083,001/689,080
6. Step 6: Final answer
   x = 1,481,115.52