Finding the Third Proportional to 297,648 and 654,557.63

Step by Step Solution

1. Step 1: Write the proportion equation
   297,648 : 654,557.63 = 654,557.63 : x
2. Step 2: Convert to fraction form
   297,648/654,557.63 = 654,557.63/x
3. Step 3: Cross multiply
   297,648x = 654,557.63 × 654,557.63
4. Step 4: Simplify right side
   297,648x = 428,445,684,445.64
5. Step 5: Solve for x
   x = 428,445,684,445.64/297,648
6. Step 6: Final answer
   x = 1,439,437.47