Finding the Third Proportional to 143,345,104.50 and 221,354,620.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,345,104.50 : 221,354,620.50 = 221,354,620.50 : x
2. Step 2: Convert to fraction form
   143,345,104.50/221,354,620.50 = 221,354,620.50/x
3. Step 3: Cross multiply
   143,345,104.50x = 221,354,620.50 × 221,354,620.50
4. Step 4: Simplify right side
   143,345,104.50x = 48,997,868,016,699,024
5. Step 5: Solve for x
   x = 48,997,868,016,699,024/143,345,104.50
6. Step 6: Final answer
   x = 341,817,519.25