Finding the Third Proportional to 30,294.75 and 64,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,294.75 : 64,801.50 = 64,801.50 : x
2. Step 2: Convert to fraction form
   30,294.75/64,801.50 = 64,801.50/x
3. Step 3: Cross multiply
   30,294.75x = 64,801.50 × 64,801.50
4. Step 4: Simplify right side
   30,294.75x = 4,199,234,402.25
5. Step 5: Solve for x
   x = 4,199,234,402.25/30,294.75
6. Step 6: Final answer
   x = 138,612.61