Finding the Third Proportional to 368,955 and 564,139.50

Step by Step Solution

1. Step 1: Write the proportion equation
   368,955 : 564,139.50 = 564,139.50 : x
2. Step 2: Convert to fraction form
   368,955/564,139.50 = 564,139.50/x
3. Step 3: Cross multiply
   368,955x = 564,139.50 × 564,139.50
4. Step 4: Simplify right side
   368,955x = 318,253,375,460.25
5. Step 5: Solve for x
   x = 318,253,375,460.25/368,955
6. Step 6: Final answer
   x = 862,580.46