Finding the Third Proportional to 4,465.31 and 9,699.38

Step by Step Solution

1. Step 1: Write the proportion equation
   4,465.31 : 9,699.38 = 9,699.38 : x
2. Step 2: Convert to fraction form
   4,465.31/9,699.38 = 9,699.38/x
3. Step 3: Cross multiply
   4,465.31x = 9,699.38 × 9,699.38
4. Step 4: Simplify right side
   4,465.31x = 94,077,875.39
5. Step 5: Solve for x
   x = 94,077,875.39/4,465.31
6. Step 6: Final answer
   x = 21,068.60