Finding the Third Proportional to 87,972,025.50 and 189,567,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   87,972,025.50 : 189,567,958.50 = 189,567,958.50 : x
2. Step 2: Convert to fraction form
   87,972,025.50/189,567,958.50 = 189,567,958.50/x
3. Step 3: Cross multiply
   87,972,025.50x = 189,567,958.50 × 189,567,958.50
4. Step 4: Simplify right side
   87,972,025.50x = 35,936,010,889,857,724
5. Step 5: Solve for x
   x = 35,936,010,889,857,724/87,972,025.50
6. Step 6: Final answer
   x = 408,493,616.98