Finding the Third Proportional to 1,354,518 and 1,991,316

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354,518 : 1,991,316 = 1,991,316 : x
2. Step 2: Convert to fraction form
   1,354,518/1,991,316 = 1,991,316/x
3. Step 3: Cross multiply
   1,354,518x = 1,991,316 × 1,991,316
4. Step 4: Simplify right side
   1,354,518x = 3,965,339,411,856
5. Step 5: Solve for x
   x = 3,965,339,411,856/1,354,518
6. Step 6: Final answer
   x = 2,927,491.12