Finding the Third Proportional to 52,389 and 80,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,389 : 80,272.50 = 80,272.50 : x
2. Step 2: Convert to fraction form
   52,389/80,272.50 = 80,272.50/x
3. Step 3: Cross multiply
   52,389x = 80,272.50 × 80,272.50
4. Step 4: Simplify right side
   52,389x = 6,443,674,256.25
5. Step 5: Solve for x
   x = 6,443,674,256.25/52,389
6. Step 6: Final answer
   x = 122,996.70