Finding the Third Proportional to 43,100,890 and 64,588,128.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,100,890 : 64,588,128.50 = 64,588,128.50 : x
2. Step 2: Convert to fraction form
   43,100,890/64,588,128.50 = 64,588,128.50/x
3. Step 3: Cross multiply
   43,100,890x = 64,588,128.50 × 64,588,128.50
4. Step 4: Simplify right side
   43,100,890x = 4,171,626,343,132,512
5. Step 5: Solve for x
   x = 4,171,626,343,132,512/43,100,890
6. Step 6: Final answer
   x = 96,787,475.69