Finding the Third Proportional to 90,699 and 196,977

Step by Step Solution

1. Step 1: Write the proportion equation
   90,699 : 196,977 = 196,977 : x
2. Step 2: Convert to fraction form
   90,699/196,977 = 196,977/x
3. Step 3: Cross multiply
   90,699x = 196,977 × 196,977
4. Step 4: Simplify right side
   90,699x = 38,799,938,529
5. Step 5: Solve for x
   x = 38,799,938,529/90,699
6. Step 6: Final answer
   x = 427,787.94