Finding the Third Proportional to 1,012,891.50 and 2,161,380

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012,891.50 : 2,161,380 = 2,161,380 : x
2. Step 2: Convert to fraction form
   1,012,891.50/2,161,380 = 2,161,380/x
3. Step 3: Cross multiply
   1,012,891.50x = 2,161,380 × 2,161,380
4. Step 4: Simplify right side
   1,012,891.50x = 4,671,563,504,400
5. Step 5: Solve for x
   x = 4,671,563,504,400/1,012,891.50
6. Step 6: Final answer
   x = 4,612,106.53