Finding the Third Proportional to 1,187,840 and 1,912,499

Step by Step Solution

1. Step 1: Write the proportion equation
   1,187,840 : 1,912,499 = 1,912,499 : x
2. Step 2: Convert to fraction form
   1,187,840/1,912,499 = 1,912,499/x
3. Step 3: Cross multiply
   1,187,840x = 1,912,499 × 1,912,499
4. Step 4: Simplify right side
   1,187,840x = 3,657,652,425,001
5. Step 5: Solve for x
   x = 3,657,652,425,001/1,187,840
6. Step 6: Final answer
   x = 3,079,246.72