Finding the Third Proportional to 143,146,380,748.50 and 213,478,222,389.75

Step by Step Solution

1. Step 1: Write the proportion equation
   143,146,380,748.50 : 213,478,222,389.75 = 213,478,222,389.75 : x
2. Step 2: Convert to fraction form
   143,146,380,748.50/213,478,222,389.75 = 213,478,222,389.75/x
3. Step 3: Cross multiply
   143,146,380,748.50x = 213,478,222,389.75 × 213,478,222,389.75
4. Step 4: Simplify right side
   143,146,380,748.50x = 45,572,951,434,687,558,975,488
5. Step 5: Solve for x
   x = 45,572,951,434,687,558,975,488/143,146,380,748.50
6. Step 6: Final answer
   x = 318,366,075,316.68