Finding the Third Proportional to 158,040 and 342,432

Step by Step Solution

1. Step 1: Write the proportion equation
   158,040 : 342,432 = 342,432 : x
2. Step 2: Convert to fraction form
   158,040/342,432 = 342,432/x
3. Step 3: Cross multiply
   158,040x = 342,432 × 342,432
4. Step 4: Simplify right side
   158,040x = 117,259,674,624
5. Step 5: Solve for x
   x = 117,259,674,624/158,040
6. Step 6: Final answer
   x = 741,962.00