Finding the Third Proportional to 30,129 and 62,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,129 : 62,647.50 = 62,647.50 : x
2. Step 2: Convert to fraction form
   30,129/62,647.50 = 62,647.50/x
3. Step 3: Cross multiply
   30,129x = 62,647.50 × 62,647.50
4. Step 4: Simplify right side
   30,129x = 3,924,709,256.25
5. Step 5: Solve for x
   x = 3,924,709,256.25/30,129
6. Step 6: Final answer
   x = 130,263.51