Finding the Third Proportional to 1,286,611.50 and 1,892,490

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,611.50 : 1,892,490 = 1,892,490 : x
2. Step 2: Convert to fraction form
   1,286,611.50/1,892,490 = 1,892,490/x
3. Step 3: Cross multiply
   1,286,611.50x = 1,892,490 × 1,892,490
4. Step 4: Simplify right side
   1,286,611.50x = 3,581,518,400,100
5. Step 5: Solve for x
   x = 3,581,518,400,100/1,286,611.50
6. Step 6: Final answer
   x = 2,783,682.88