Finding the Third Proportional to 288,320.50 and 430,094

Step by Step Solution

1. Step 1: Write the proportion equation
   288,320.50 : 430,094 = 430,094 : x
2. Step 2: Convert to fraction form
   288,320.50/430,094 = 430,094/x
3. Step 3: Cross multiply
   288,320.50x = 430,094 × 430,094
4. Step 4: Simplify right side
   288,320.50x = 184,980,848,836
5. Step 5: Solve for x
   x = 184,980,848,836/288,320.50
6. Step 6: Final answer
   x = 641,580.63