Finding the Third Proportional to 1,380,972 and 2,857,776

Step by Step Solution

1. Step 1: Write the proportion equation
   1,380,972 : 2,857,776 = 2,857,776 : x
2. Step 2: Convert to fraction form
   1,380,972/2,857,776 = 2,857,776/x
3. Step 3: Cross multiply
   1,380,972x = 2,857,776 × 2,857,776
4. Step 4: Simplify right side
   1,380,972x = 8,166,883,666,176
5. Step 5: Solve for x
   x = 8,166,883,666,176/1,380,972
6. Step 6: Final answer
   x = 5,913,866.22