Finding the Third Proportional to 1,931,143 and 2,921,570

Step by Step Solution

1. Step 1: Write the proportion equation
   1,931,143 : 2,921,570 = 2,921,570 : x
2. Step 2: Convert to fraction form
   1,931,143/2,921,570 = 2,921,570/x
3. Step 3: Cross multiply
   1,931,143x = 2,921,570 × 2,921,570
4. Step 4: Simplify right side
   1,931,143x = 8,535,571,264,900
5. Step 5: Solve for x
   x = 8,535,571,264,900/1,931,143
6. Step 6: Final answer
   x = 4,419,958.16