Finding the Third Proportional to 60,570 and 91,401

Step by Step Solution

1. Step 1: Write the proportion equation
   60,570 : 91,401 = 91,401 : x
2. Step 2: Convert to fraction form
   60,570/91,401 = 91,401/x
3. Step 3: Cross multiply
   60,570x = 91,401 × 91,401
4. Step 4: Simplify right side
   60,570x = 8,354,142,801
5. Step 5: Solve for x
   x = 8,354,142,801/60,570
6. Step 6: Final answer
   x = 137,925.42