Finding the Third Proportional to 9,403,490 and 12,993,488

Step by Step Solution

1. Step 1: Write the proportion equation
   9,403,490 : 12,993,488 = 12,993,488 : x
2. Step 2: Convert to fraction form
   9,403,490/12,993,488 = 12,993,488/x
3. Step 3: Cross multiply
   9,403,490x = 12,993,488 × 12,993,488
4. Step 4: Simplify right side
   9,403,490x = 168,830,730,406,144
5. Step 5: Solve for x
   x = 168,830,730,406,144/9,403,490
6. Step 6: Final answer
   x = 17,954,050.08