Finding the Third Proportional to 1,053,783,189,436 and 1,421,800,926,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,053,783,189,436 : 1,421,800,926,172 = 1,421,800,926,172 : x
2. Step 2: Convert to fraction form
   1,053,783,189,436/1,421,800,926,172 = 1,421,800,926,172/x
3. Step 3: Cross multiply
   1,053,783,189,436x = 1,421,800,926,172 × 1,421,800,926,172
4. Step 4: Simplify right side
   1,053,783,189,436x = 2,021,517,873,663,556,961,959,936
5. Step 5: Solve for x
   x = 2,021,517,873,663,556,961,959,936/1,053,783,189,436
6. Step 6: Final answer
   x = 1,918,343,254,977.81