Finding the Third Proportional to 130,958 and 279,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   130,958 : 279,087.50 = 279,087.50 : x
2. Step 2: Convert to fraction form
   130,958/279,087.50 = 279,087.50/x
3. Step 3: Cross multiply
   130,958x = 279,087.50 × 279,087.50
4. Step 4: Simplify right side
   130,958x = 77,889,832,656.25
5. Step 5: Solve for x
   x = 77,889,832,656.25/130,958
6. Step 6: Final answer
   x = 594,769.56