Finding the Third Proportional to 1,691,312 and 3,559,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,691,312 : 3,559,690 = 3,559,690 : x
2. Step 2: Convert to fraction form
   1,691,312/3,559,690 = 3,559,690/x
3. Step 3: Cross multiply
   1,691,312x = 3,559,690 × 3,559,690
4. Step 4: Simplify right side
   1,691,312x = 12,671,392,896,100
5. Step 5: Solve for x
   x = 12,671,392,896,100/1,691,312
6. Step 6: Final answer
   x = 7,492,049.31