Finding the Third Proportional to 15,292.13 and 21,051.56

Step by Step Solution

1. Step 1: Write the proportion equation
   15,292.13 : 21,051.56 = 21,051.56 : x
2. Step 2: Convert to fraction form
   15,292.13/21,051.56 = 21,051.56/x
3. Step 3: Cross multiply
   15,292.13x = 21,051.56 × 21,051.56
4. Step 4: Simplify right side
   15,292.13x = 443,168,283.69
5. Step 5: Solve for x
   x = 443,168,283.69/15,292.13
6. Step 6: Final answer
   x = 28,980.16