Finding the Third Proportional to 7,315,840 and 9,868,704

Step by Step Solution

1. Step 1: Write the proportion equation
   7,315,840 : 9,868,704 = 9,868,704 : x
2. Step 2: Convert to fraction form
   7,315,840/9,868,704 = 9,868,704/x
3. Step 3: Cross multiply
   7,315,840x = 9,868,704 × 9,868,704
4. Step 4: Simplify right side
   7,315,840x = 97,391,318,639,616
5. Step 5: Solve for x
   x = 97,391,318,639,616/7,315,840
6. Step 6: Final answer
   x = 13,312,390.46