Finding the Third Proportional to 727,381 and 1,580,665

Step by Step Solution

1. Step 1: Write the proportion equation
   727,381 : 1,580,665 = 1,580,665 : x
2. Step 2: Convert to fraction form
   727,381/1,580,665 = 1,580,665/x
3. Step 3: Cross multiply
   727,381x = 1,580,665 × 1,580,665
4. Step 4: Simplify right side
   727,381x = 2,498,501,842,225
5. Step 5: Solve for x
   x = 2,498,501,842,225/727,381
6. Step 6: Final answer
   x = 3,434,928.66