Finding the Third Proportional to 200,951,395.50 and 430,978,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   200,951,395.50 : 430,978,423.50 = 430,978,423.50 : x
2. Step 2: Convert to fraction form
   200,951,395.50/430,978,423.50 = 430,978,423.50/x
3. Step 3: Cross multiply
   200,951,395.50x = 430,978,423.50 × 430,978,423.50
4. Step 4: Simplify right side
   200,951,395.50x = 185,742,401,522,545,344
5. Step 5: Solve for x
   x = 185,742,401,522,545,344/200,951,395.50
6. Step 6: Final answer
   x = 924,315,061.66