Finding the Third Proportional to 64,987,661.81 and 100,952,261.72

Step by Step Solution

1. Step 1: Write the proportion equation
   64,987,661.81 : 100,952,261.72 = 100,952,261.72 : x
2. Step 2: Convert to fraction form
   64,987,661.81/100,952,261.72 = 100,952,261.72/x
3. Step 3: Cross multiply
   64,987,661.81x = 100,952,261.72 × 100,952,261.72
4. Step 4: Simplify right side
   64,987,661.81x = 10,191,359,146,130,996
5. Step 5: Solve for x
   x = 10,191,359,146,130,996/64,987,661.81
6. Step 6: Final answer
   x = 156,819,907.99