Finding the Third Proportional to 1,217,232 and 1,780,776

Step by Step Solution

1. Step 1: Write the proportion equation
   1,217,232 : 1,780,776 = 1,780,776 : x
2. Step 2: Convert to fraction form
   1,217,232/1,780,776 = 1,780,776/x
3. Step 3: Cross multiply
   1,217,232x = 1,780,776 × 1,780,776
4. Step 4: Simplify right side
   1,217,232x = 3,171,163,162,176
5. Step 5: Solve for x
   x = 3,171,163,162,176/1,217,232
6. Step 6: Final answer
   x = 2,605,224.94