Finding the Third Proportional to 89,437.50 and 189,536.63

Step by Step Solution

1. Step 1: Write the proportion equation
   89,437.50 : 189,536.63 = 189,536.63 : x
2. Step 2: Convert to fraction form
   89,437.50/189,536.63 = 189,536.63/x
3. Step 3: Cross multiply
   89,437.50x = 189,536.63 × 189,536.63
4. Step 4: Simplify right side
   89,437.50x = 35,924,132,216.39
5. Step 5: Solve for x
   x = 35,924,132,216.39/89,437.50
6. Step 6: Final answer
   x = 401,667.45