Finding the Third Proportional to 1,286,336 and 1,890,964

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,336 : 1,890,964 = 1,890,964 : x
2. Step 2: Convert to fraction form
   1,286,336/1,890,964 = 1,890,964/x
3. Step 3: Cross multiply
   1,286,336x = 1,890,964 × 1,890,964
4. Step 4: Simplify right side
   1,286,336x = 3,575,744,849,296
5. Step 5: Solve for x
   x = 3,575,744,849,296/1,286,336
6. Step 6: Final answer
   x = 2,779,790.70