Finding the Third Proportional to 143,345,461.50 and 221,355,164.25

Step by Step Solution

1. Step 1: Write the proportion equation
   143,345,461.50 : 221,355,164.25 = 221,355,164.25 : x
2. Step 2: Convert to fraction form
   143,345,461.50/221,355,164.25 = 221,355,164.25/x
3. Step 3: Cross multiply
   143,345,461.50x = 221,355,164.25 × 221,355,164.25
4. Step 4: Simplify right side
   143,345,461.50x = 48,998,108,740,144,480
5. Step 5: Solve for x
   x = 48,998,108,740,144,480/143,345,461.50
6. Step 6: Final answer
   x = 341,818,347.28