Finding the Third Proportional to 28,380 and 61,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,380 : 61,090.50 = 61,090.50 : x
2. Step 2: Convert to fraction form
   28,380/61,090.50 = 61,090.50/x
3. Step 3: Cross multiply
   28,380x = 61,090.50 × 61,090.50
4. Step 4: Simplify right side
   28,380x = 3,732,049,190.25
5. Step 5: Solve for x
   x = 3,732,049,190.25/28,380
6. Step 6: Final answer
   x = 131,502.79