Finding the Third Proportional to 34,245 and 69,432

Step by Step Solution

1. Step 1: Write the proportion equation
   34,245 : 69,432 = 69,432 : x
2. Step 2: Convert to fraction form
   34,245/69,432 = 69,432/x
3. Step 3: Cross multiply
   34,245x = 69,432 × 69,432
4. Step 4: Simplify right side
   34,245x = 4,820,802,624
5. Step 5: Solve for x
   x = 4,820,802,624/34,245
6. Step 6: Final answer
   x = 140,773.91