Finding the Third Proportional to 14,320.90 and 21,042.93

Step by Step Solution

1. Step 1: Write the proportion equation
   14,320.90 : 21,042.93 = 21,042.93 : x
2. Step 2: Convert to fraction form
   14,320.90/21,042.93 = 21,042.93/x
3. Step 3: Cross multiply
   14,320.90x = 21,042.93 × 21,042.93
4. Step 4: Simplify right side
   14,320.90x = 442,805,064.51
5. Step 5: Solve for x
   x = 442,805,064.51/14,320.90
6. Step 6: Final answer
   x = 30,920.19