Finding the Third Proportional to 1,158,138 and 1,746,321

Step by Step Solution

1. Step 1: Write the proportion equation
   1,158,138 : 1,746,321 = 1,746,321 : x
2. Step 2: Convert to fraction form
   1,158,138/1,746,321 = 1,746,321/x
3. Step 3: Cross multiply
   1,158,138x = 1,746,321 × 1,746,321
4. Step 4: Simplify right side
   1,158,138x = 3,049,637,035,041
5. Step 5: Solve for x
   x = 3,049,637,035,041/1,158,138
6. Step 6: Final answer
   x = 2,633,224.22