Finding the Third Proportional to 158,526 and 215,913

Step by Step Solution

1. Step 1: Write the proportion equation
   158,526 : 215,913 = 215,913 : x
2. Step 2: Convert to fraction form
   158,526/215,913 = 215,913/x
3. Step 3: Cross multiply
   158,526x = 215,913 × 215,913
4. Step 4: Simplify right side
   158,526x = 46,618,423,569
5. Step 5: Solve for x
   x = 46,618,423,569/158,526
6. Step 6: Final answer
   x = 294,074.31