Finding the Third Proportional to 7,126.31 and 15,386.63

Step by Step Solution

1. Step 1: Write the proportion equation
   7,126.31 : 15,386.63 = 15,386.63 : x
2. Step 2: Convert to fraction form
   7,126.31/15,386.63 = 15,386.63/x
3. Step 3: Cross multiply
   7,126.31x = 15,386.63 × 15,386.63
4. Step 4: Simplify right side
   7,126.31x = 236,748,228.89
5. Step 5: Solve for x
   x = 236,748,228.89/7,126.31
6. Step 6: Final answer
   x = 33,221.70