Finding the Third Proportional to 87,695 and 189,402.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,695 : 189,402.50 = 189,402.50 : x
2. Step 2: Convert to fraction form
   87,695/189,402.50 = 189,402.50/x
3. Step 3: Cross multiply
   87,695x = 189,402.50 × 189,402.50
4. Step 4: Simplify right side
   87,695x = 35,873,307,006.25
5. Step 5: Solve for x
   x = 35,873,307,006.25/87,695
6. Step 6: Final answer
   x = 409,069.01