Finding the Third Proportional to 28,978.25 and 61,784.13

Step by Step Solution

1. Step 1: Write the proportion equation
   28,978.25 : 61,784.13 = 61,784.13 : x
2. Step 2: Convert to fraction form
   28,978.25/61,784.13 = 61,784.13/x
3. Step 3: Cross multiply
   28,978.25x = 61,784.13 × 61,784.13
4. Step 4: Simplify right side
   28,978.25x = 3,817,278,102.02
5. Step 5: Solve for x
   x = 3,817,278,102.02/28,978.25
6. Step 6: Final answer
   x = 131,729.08