Finding the Third Proportional to 19,989 and 46,280.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,989 : 46,280.50 = 46,280.50 : x
2. Step 2: Convert to fraction form
   19,989/46,280.50 = 46,280.50/x
3. Step 3: Cross multiply
   19,989x = 46,280.50 × 46,280.50
4. Step 4: Simplify right side
   19,989x = 2,141,884,680.25
5. Step 5: Solve for x
   x = 2,141,884,680.25/19,989
6. Step 6: Final answer
   x = 107,153.17