Finding the Third Proportional to 656,832 and 1,421,620

Step by Step Solution

1. Step 1: Write the proportion equation
   656,832 : 1,421,620 = 1,421,620 : x
2. Step 2: Convert to fraction form
   656,832/1,421,620 = 1,421,620/x
3. Step 3: Cross multiply
   656,832x = 1,421,620 × 1,421,620
4. Step 4: Simplify right side
   656,832x = 2,021,003,424,400
5. Step 5: Solve for x
   x = 2,021,003,424,400/656,832
6. Step 6: Final answer
   x = 3,076,895.50