Finding the Third Proportional to 30,847.50 and 64,914.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,847.50 : 64,914.75 = 64,914.75 : x
2. Step 2: Convert to fraction form
   30,847.50/64,914.75 = 64,914.75/x
3. Step 3: Cross multiply
   30,847.50x = 64,914.75 × 64,914.75
4. Step 4: Simplify right side
   30,847.50x = 4,213,924,767.56
5. Step 5: Solve for x
   x = 4,213,924,767.56/30,847.50
6. Step 6: Final answer
   x = 136,605.07