Finding the Third Proportional to 3,619,840 and 7,148,312

Step by Step Solution

1. Step 1: Write the proportion equation
   3,619,840 : 7,148,312 = 7,148,312 : x
2. Step 2: Convert to fraction form
   3,619,840/7,148,312 = 7,148,312/x
3. Step 3: Cross multiply
   3,619,840x = 7,148,312 × 7,148,312
4. Step 4: Simplify right side
   3,619,840x = 51,098,364,449,344
5. Step 5: Solve for x
   x = 51,098,364,449,344/3,619,840
6. Step 6: Final answer
   x = 14,116,194.21