Finding the Third Proportional to 9,886,218 and 21,371,404

Step by Step Solution

1. Step 1: Write the proportion equation
   9,886,218 : 21,371,404 = 21,371,404 : x
2. Step 2: Convert to fraction form
   9,886,218/21,371,404 = 21,371,404/x
3. Step 3: Cross multiply
   9,886,218x = 21,371,404 × 21,371,404
4. Step 4: Simplify right side
   9,886,218x = 456,736,908,931,216
5. Step 5: Solve for x
   x = 456,736,908,931,216/9,886,218
6. Step 6: Final answer
   x = 46,199,356.41