Finding the Third Proportional to 342,147 and 499,828.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,147 : 499,828.50 = 499,828.50 : x
2. Step 2: Convert to fraction form
   342,147/499,828.50 = 499,828.50/x
3. Step 3: Cross multiply
   342,147x = 499,828.50 × 499,828.50
4. Step 4: Simplify right side
   342,147x = 249,828,529,412.25
5. Step 5: Solve for x
   x = 249,828,529,412.25/342,147
6. Step 6: Final answer
   x = 730,178.93