Finding the Third Proportional to 8,858,672 and 13,878,300

Step by Step Solution

1. Step 1: Write the proportion equation
   8,858,672 : 13,878,300 = 13,878,300 : x
2. Step 2: Convert to fraction form
   8,858,672/13,878,300 = 13,878,300/x
3. Step 3: Cross multiply
   8,858,672x = 13,878,300 × 13,878,300
4. Step 4: Simplify right side
   8,858,672x = 192,607,210,890,000
5. Step 5: Solve for x
   x = 192,607,210,890,000/8,858,672
6. Step 6: Final answer
   x = 21,742,221.73