Finding the Third Proportional to 42,343,743.75 and 64,732,608

Step by Step Solution

1. Step 1: Write the proportion equation
   42,343,743.75 : 64,732,608 = 64,732,608 : x
2. Step 2: Convert to fraction form
   42,343,743.75/64,732,608 = 64,732,608/x
3. Step 3: Cross multiply
   42,343,743.75x = 64,732,608 × 64,732,608
4. Step 4: Simplify right side
   42,343,743.75x = 4,190,310,538,481,664
5. Step 5: Solve for x
   x = 4,190,310,538,481,664/42,343,743.75
6. Step 6: Final answer
   x = 98,959,377.88