Finding the Third Proportional to 64,005 and 84,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   64,005 : 84,931.50 = 84,931.50 : x
2. Step 2: Convert to fraction form
   64,005/84,931.50 = 84,931.50/x
3. Step 3: Cross multiply
   64,005x = 84,931.50 × 84,931.50
4. Step 4: Simplify right side
   64,005x = 7,213,359,692.25
5. Step 5: Solve for x
   x = 7,213,359,692.25/64,005
6. Step 6: Final answer
   x = 112,699.94