Finding the Third Proportional to 13,888 and 30,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,888 : 30,316.50 = 30,316.50 : x
2. Step 2: Convert to fraction form
   13,888/30,316.50 = 30,316.50/x
3. Step 3: Cross multiply
   13,888x = 30,316.50 × 30,316.50
4. Step 4: Simplify right side
   13,888x = 919,090,172.25
5. Step 5: Solve for x
   x = 919,090,172.25/13,888
6. Step 6: Final answer
   x = 66,178.73