Finding the Third Proportional to 158,740 and 215,584

Step by Step Solution

1. Step 1: Write the proportion equation
   158,740 : 215,584 = 215,584 : x
2. Step 2: Convert to fraction form
   158,740/215,584 = 215,584/x
3. Step 3: Cross multiply
   158,740x = 215,584 × 215,584
4. Step 4: Simplify right side
   158,740x = 46,476,461,056
5. Step 5: Solve for x
   x = 46,476,461,056/158,740
6. Step 6: Final answer
   x = 292,783.55