Finding the Third Proportional to 28,930.50 and 63,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,930.50 : 63,409.50 = 63,409.50 : x
2. Step 2: Convert to fraction form
   28,930.50/63,409.50 = 63,409.50/x
3. Step 3: Cross multiply
   28,930.50x = 63,409.50 × 63,409.50
4. Step 4: Simplify right side
   28,930.50x = 4,020,764,690.25
5. Step 5: Solve for x
   x = 4,020,764,690.25/28,930.50
6. Step 6: Final answer
   x = 138,980.13