Finding the Third Proportional to 43,428 and 89,160

Step by Step Solution

1. Step 1: Write the proportion equation
   43,428 : 89,160 = 89,160 : x
2. Step 2: Convert to fraction form
   43,428/89,160 = 89,160/x
3. Step 3: Cross multiply
   43,428x = 89,160 × 89,160
4. Step 4: Simplify right side
   43,428x = 7,949,505,600
5. Step 5: Solve for x
   x = 7,949,505,600/43,428
6. Step 6: Final answer
   x = 183,050.23