Finding the Third Proportional to 9,890,874 and 21,088,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,890,874 : 21,088,196.50 = 21,088,196.50 : x
2. Step 2: Convert to fraction form
   9,890,874/21,088,196.50 = 21,088,196.50/x
3. Step 3: Cross multiply
   9,890,874x = 21,088,196.50 × 21,088,196.50
4. Step 4: Simplify right side
   9,890,874x = 444,712,031,622,612.25
5. Step 5: Solve for x
   x = 444,712,031,622,612.25/9,890,874
6. Step 6: Final answer
   x = 44,961,853.89