Finding the Third Proportional to 87,692.63 and 189,395.72

Step by Step Solution

1. Step 1: Write the proportion equation
   87,692.63 : 189,395.72 = 189,395.72 : x
2. Step 2: Convert to fraction form
   87,692.63/189,395.72 = 189,395.72/x
3. Step 3: Cross multiply
   87,692.63x = 189,395.72 × 189,395.72
4. Step 4: Simplify right side
   87,692.63x = 35,870,738,280.83
5. Step 5: Solve for x
   x = 35,870,738,280.83/87,692.63
6. Step 6: Final answer
   x = 409,050.80