Finding the Third Proportional to 21,155.50 and 45,953

Step by Step Solution

1. Step 1: Write the proportion equation
   21,155.50 : 45,953 = 45,953 : x
2. Step 2: Convert to fraction form
   21,155.50/45,953 = 45,953/x
3. Step 3: Cross multiply
   21,155.50x = 45,953 × 45,953
4. Step 4: Simplify right side
   21,155.50x = 2,111,678,209
5. Step 5: Solve for x
   x = 2,111,678,209/21,155.50
6. Step 6: Final answer
   x = 99,816.98