Finding the Third Proportional to 64,298 and 99,549

Step by Step Solution

1. Step 1: Write the proportion equation
   64,298 : 99,549 = 99,549 : x
2. Step 2: Convert to fraction form
   64,298/99,549 = 99,549/x
3. Step 3: Cross multiply
   64,298x = 99,549 × 99,549
4. Step 4: Simplify right side
   64,298x = 9,910,003,401
5. Step 5: Solve for x
   x = 9,910,003,401/64,298
6. Step 6: Final answer
   x = 154,126.15