Finding the Third Proportional to 30,298.50 and 64,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,298.50 : 64,483.50 = 64,483.50 : x
2. Step 2: Convert to fraction form
   30,298.50/64,483.50 = 64,483.50/x
3. Step 3: Cross multiply
   30,298.50x = 64,483.50 × 64,483.50
4. Step 4: Simplify right side
   30,298.50x = 4,158,121,772.25
5. Step 5: Solve for x
   x = 4,158,121,772.25/30,298.50
6. Step 6: Final answer
   x = 137,238.54