Finding the Third Proportional to 1,672,518 and 2,658,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,672,518 : 2,658,312 = 2,658,312 : x
2. Step 2: Convert to fraction form
   1,672,518/2,658,312 = 2,658,312/x
3. Step 3: Cross multiply
   1,672,518x = 2,658,312 × 2,658,312
4. Step 4: Simplify right side
   1,672,518x = 7,066,622,689,344
5. Step 5: Solve for x
   x = 7,066,622,689,344/1,672,518
6. Step 6: Final answer
   x = 4,225,139.99