Finding the Third Proportional to 30,463.31 and 66,812.06

Step by Step Solution

1. Step 1: Write the proportion equation
   30,463.31 : 66,812.06 = 66,812.06 : x
2. Step 2: Convert to fraction form
   30,463.31/66,812.06 = 66,812.06/x
3. Step 3: Cross multiply
   30,463.31x = 66,812.06 × 66,812.06
4. Step 4: Simplify right side
   30,463.31x = 4,463,851,695.50
5. Step 5: Solve for x
   x = 4,463,851,695.50/30,463.31
6. Step 6: Final answer
   x = 146,532.05