Finding the Third Proportional to 29,756.81 and 61,979.63

Step by Step Solution

1. Step 1: Write the proportion equation
   29,756.81 : 61,979.63 = 61,979.63 : x
2. Step 2: Convert to fraction form
   29,756.81/61,979.63 = 61,979.63/x
3. Step 3: Cross multiply
   29,756.81x = 61,979.63 × 61,979.63
4. Step 4: Simplify right side
   29,756.81x = 3,841,473,915.14
5. Step 5: Solve for x
   x = 3,841,473,915.14/29,756.81
6. Step 6: Final answer
   x = 129,095.61