Finding the Third Proportional to 64,893 and 139,483.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,893 : 139,483.50 = 139,483.50 : x
2. Step 2: Convert to fraction form
   64,893/139,483.50 = 139,483.50/x
3. Step 3: Cross multiply
   64,893x = 139,483.50 × 139,483.50
4. Step 4: Simplify right side
   64,893x = 19,455,646,772.25
5. Step 5: Solve for x
   x = 19,455,646,772.25/64,893
6. Step 6: Final answer
   x = 299,811.18