Finding the Third Proportional to 1,385,261 and 2,072,316

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,261 : 2,072,316 = 2,072,316 : x
2. Step 2: Convert to fraction form
   1,385,261/2,072,316 = 2,072,316/x
3. Step 3: Cross multiply
   1,385,261x = 2,072,316 × 2,072,316
4. Step 4: Simplify right side
   1,385,261x = 4,294,493,603,856
5. Step 5: Solve for x
   x = 4,294,493,603,856/1,385,261
6. Step 6: Final answer
   x = 3,100,133.19