Finding the Third Proportional to 561,390 and 1,227,754.50

Step by Step Solution

1. Step 1: Write the proportion equation
   561,390 : 1,227,754.50 = 1,227,754.50 : x
2. Step 2: Convert to fraction form
   561,390/1,227,754.50 = 1,227,754.50/x
3. Step 3: Cross multiply
   561,390x = 1,227,754.50 × 1,227,754.50
4. Step 4: Simplify right side
   561,390x = 1,507,381,112,270.25
5. Step 5: Solve for x
   x = 1,507,381,112,270.25/561,390
6. Step 6: Final answer
   x = 2,685,087.22