Finding the Third Proportional to 11,778,506 and 17,680,222

Step by Step Solution

1. Step 1: Write the proportion equation
   11,778,506 : 17,680,222 = 17,680,222 : x
2. Step 2: Convert to fraction form
   11,778,506/17,680,222 = 17,680,222/x
3. Step 3: Cross multiply
   11,778,506x = 17,680,222 × 17,680,222
4. Step 4: Simplify right side
   11,778,506x = 312,590,249,969,284
5. Step 5: Solve for x
   x = 312,590,249,969,284/11,778,506
6. Step 6: Final answer
   x = 26,539,040.69