Finding the Third Proportional to 13,731.19 and 29,980.13

Step by Step Solution

1. Step 1: Write the proportion equation
   13,731.19 : 29,980.13 = 29,980.13 : x
2. Step 2: Convert to fraction form
   13,731.19/29,980.13 = 29,980.13/x
3. Step 3: Cross multiply
   13,731.19x = 29,980.13 × 29,980.13
4. Step 4: Simplify right side
   13,731.19x = 898,807,895.02
5. Step 5: Solve for x
   x = 898,807,895.02/13,731.19
6. Step 6: Final answer
   x = 65,457.40