Finding the Third Proportional to 129,532 and 305,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   129,532 : 305,339.50 = 305,339.50 : x
2. Step 2: Convert to fraction form
   129,532/305,339.50 = 305,339.50/x
3. Step 3: Cross multiply
   129,532x = 305,339.50 × 305,339.50
4. Step 4: Simplify right side
   129,532x = 93,232,210,260.25
5. Step 5: Solve for x
   x = 93,232,210,260.25/129,532
6. Step 6: Final answer
   x = 719,761.99