Finding the Third Proportional to 32,310 and 69,300

Step by Step Solution

1. Step 1: Write the proportion equation
   32,310 : 69,300 = 69,300 : x
2. Step 2: Convert to fraction form
   32,310/69,300 = 69,300/x
3. Step 3: Cross multiply
   32,310x = 69,300 × 69,300
4. Step 4: Simplify right side
   32,310x = 4,802,490,000
5. Step 5: Solve for x
   x = 4,802,490,000/32,310
6. Step 6: Final answer
   x = 148,637.88