Finding the Third Proportional to 397,186 and 599,487.50

Step by Step Solution

1. Step 1: Write the proportion equation
   397,186 : 599,487.50 = 599,487.50 : x
2. Step 2: Convert to fraction form
   397,186/599,487.50 = 599,487.50/x
3. Step 3: Cross multiply
   397,186x = 599,487.50 × 599,487.50
4. Step 4: Simplify right side
   397,186x = 359,385,262,656.25
5. Step 5: Solve for x
   x = 359,385,262,656.25/397,186
6. Step 6: Final answer
   x = 904,828.63