Finding the Third Proportional to 16,918.88 and 34,248.45

Step by Step Solution

1. Step 1: Write the proportion equation
   16,918.88 : 34,248.45 = 34,248.45 : x
2. Step 2: Convert to fraction form
   16,918.88/34,248.45 = 34,248.45/x
3. Step 3: Cross multiply
   16,918.88x = 34,248.45 × 34,248.45
4. Step 4: Simplify right side
   16,918.88x = 1,172,956,006.32
5. Step 5: Solve for x
   x = 1,172,956,006.32/16,918.88
6. Step 6: Final answer
   x = 69,328.25