Finding the Third Proportional to 151,464.81 and 318,598.63

Step by Step Solution

1. Step 1: Write the proportion equation
   151,464.81 : 318,598.63 = 318,598.63 : x
2. Step 2: Convert to fraction form
   151,464.81/318,598.63 = 318,598.63/x
3. Step 3: Cross multiply
   151,464.81x = 318,598.63 × 318,598.63
4. Step 4: Simplify right side
   151,464.81x = 101,505,083,851.89
5. Step 5: Solve for x
   x = 101,505,083,851.89/151,464.81
6. Step 6: Final answer
   x = 670,156.20