Finding the Third Proportional to 91,013.63 and 189,290.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,013.63 : 189,290.25 = 189,290.25 : x
2. Step 2: Convert to fraction form
   91,013.63/189,290.25 = 189,290.25/x
3. Step 3: Cross multiply
   91,013.63x = 189,290.25 × 189,290.25
4. Step 4: Simplify right side
   91,013.63x = 35,830,798,745.06
5. Step 5: Solve for x
   x = 35,830,798,745.06/91,013.63
6. Step 6: Final answer
   x = 393,686.10