Finding the Third Proportional to 27,683.25 and 64,990.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,683.25 : 64,990.50 = 64,990.50 : x
2. Step 2: Convert to fraction form
   27,683.25/64,990.50 = 64,990.50/x
3. Step 3: Cross multiply
   27,683.25x = 64,990.50 × 64,990.50
4. Step 4: Simplify right side
   27,683.25x = 4,223,765,090.25
5. Step 5: Solve for x
   x = 4,223,765,090.25/27,683.25
6. Step 6: Final answer
   x = 152,574.76