Finding the Third Proportional to 85,538,452 and 123,588,318

Step by Step Solution

1. Step 1: Write the proportion equation
   85,538,452 : 123,588,318 = 123,588,318 : x
2. Step 2: Convert to fraction form
   85,538,452/123,588,318 = 123,588,318/x
3. Step 3: Cross multiply
   85,538,452x = 123,588,318 × 123,588,318
4. Step 4: Simplify right side
   85,538,452x = 15,274,072,346,069,124
5. Step 5: Solve for x
   x = 15,274,072,346,069,124/85,538,452
6. Step 6: Final answer
   x = 178,563,815.32