Finding the Third Proportional to 9,970,188 and 21,641,964.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,970,188 : 21,641,964.50 = 21,641,964.50 : x
2. Step 2: Convert to fraction form
   9,970,188/21,641,964.50 = 21,641,964.50/x
3. Step 3: Cross multiply
   9,970,188x = 21,641,964.50 × 21,641,964.50
4. Step 4: Simplify right side
   9,970,188x = 468,374,627,419,260.25
5. Step 5: Solve for x
   x = 468,374,627,419,260.25/9,970,188
6. Step 6: Final answer
   x = 46,977,512.10