Finding the Third Proportional to 28,939 and 61,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,939 : 61,432.50 = 61,432.50 : x
2. Step 2: Convert to fraction form
   28,939/61,432.50 = 61,432.50/x
3. Step 3: Cross multiply
   28,939x = 61,432.50 × 61,432.50
4. Step 4: Simplify right side
   28,939x = 3,773,952,056.25
5. Step 5: Solve for x
   x = 3,773,952,056.25/28,939
6. Step 6: Final answer
   x = 130,410.59