Finding the Third Proportional to 46,428.19 and 72,421.59

Step by Step Solution

1. Step 1: Write the proportion equation
   46,428.19 : 72,421.59 = 72,421.59 : x
2. Step 2: Convert to fraction form
   46,428.19/72,421.59 = 72,421.59/x
3. Step 3: Cross multiply
   46,428.19x = 72,421.59 × 72,421.59
4. Step 4: Simplify right side
   46,428.19x = 5,244,887,241.29
5. Step 5: Solve for x
   x = 5,244,887,241.29/46,428.19
6. Step 6: Final answer
   x = 112,967.74