Finding the Third Proportional to 58,998 and 128,362.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,998 : 128,362.50 = 128,362.50 : x
2. Step 2: Convert to fraction form
   58,998/128,362.50 = 128,362.50/x
3. Step 3: Cross multiply
   58,998x = 128,362.50 × 128,362.50
4. Step 4: Simplify right side
   58,998x = 16,476,931,406.25
5. Step 5: Solve for x
   x = 16,476,931,406.25/58,998
6. Step 6: Final answer
   x = 279,279.49