Finding the Third Proportional to 308,877 and 460,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,877 : 460,603.50 = 460,603.50 : x
2. Step 2: Convert to fraction form
   308,877/460,603.50 = 460,603.50/x
3. Step 3: Cross multiply
   308,877x = 460,603.50 × 460,603.50
4. Step 4: Simplify right side
   308,877x = 212,155,584,212.25
5. Step 5: Solve for x
   x = 212,155,584,212.25/308,877
6. Step 6: Final answer
   x = 686,861.06