Finding the Third Proportional to 308,018 and 460,773.50

Step by Step Solution

1. Step 1: Write the proportion equation
   308,018 : 460,773.50 = 460,773.50 : x
2. Step 2: Convert to fraction form
   308,018/460,773.50 = 460,773.50/x
3. Step 3: Cross multiply
   308,018x = 460,773.50 × 460,773.50
4. Step 4: Simplify right side
   308,018x = 212,312,218,302.25
5. Step 5: Solve for x
   x = 212,312,218,302.25/308,018
6. Step 6: Final answer
   x = 689,285.10