Finding the Third Proportional to 29,400.19 and 64,429.31

Step by Step Solution

1. Step 1: Write the proportion equation
   29,400.19 : 64,429.31 = 64,429.31 : x
2. Step 2: Convert to fraction form
   29,400.19/64,429.31 = 64,429.31/x
3. Step 3: Cross multiply
   29,400.19x = 64,429.31 × 64,429.31
4. Step 4: Simplify right side
   29,400.19x = 4,151,136,309.22
5. Step 5: Solve for x
   x = 4,151,136,309.22/29,400.19
6. Step 6: Final answer
   x = 141,194.21