Finding the Third Proportional to 1,290,217.50 and 1,994,436

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,217.50 : 1,994,436 = 1,994,436 : x
2. Step 2: Convert to fraction form
   1,290,217.50/1,994,436 = 1,994,436/x
3. Step 3: Cross multiply
   1,290,217.50x = 1,994,436 × 1,994,436
4. Step 4: Simplify right side
   1,290,217.50x = 3,977,774,958,096
5. Step 5: Solve for x
   x = 3,977,774,958,096/1,290,217.50
6. Step 6: Final answer
   x = 3,083,026.67