Finding the Third Proportional to 1,018,199 and 1,509,685

Step by Step Solution

1. Step 1: Write the proportion equation
   1,018,199 : 1,509,685 = 1,509,685 : x
2. Step 2: Convert to fraction form
   1,018,199/1,509,685 = 1,509,685/x
3. Step 3: Cross multiply
   1,018,199x = 1,509,685 × 1,509,685
4. Step 4: Simplify right side
   1,018,199x = 2,279,148,799,225
5. Step 5: Solve for x
   x = 2,279,148,799,225/1,018,199
6. Step 6: Final answer
   x = 2,238,411.94