Finding the Third Proportional to 28,796.13 and 42,972.08

Step by Step Solution

1. Step 1: Write the proportion equation
   28,796.13 : 42,972.08 = 42,972.08 : x
2. Step 2: Convert to fraction form
   28,796.13/42,972.08 = 42,972.08/x
3. Step 3: Cross multiply
   28,796.13x = 42,972.08 × 42,972.08
4. Step 4: Simplify right side
   28,796.13x = 1,846,599,834.10
5. Step 5: Solve for x
   x = 1,846,599,834.10/28,796.13
6. Step 6: Final answer
   x = 64,126.66