Finding the Third Proportional to 53,858,251.69 and 85,296,322.69

Step by Step Solution

1. Step 1: Write the proportion equation
   53,858,251.69 : 85,296,322.69 = 85,296,322.69 : x
2. Step 2: Convert to fraction form
   53,858,251.69/85,296,322.69 = 85,296,322.69/x
3. Step 3: Cross multiply
   53,858,251.69x = 85,296,322.69 × 85,296,322.69
4. Step 4: Simplify right side
   53,858,251.69x = 7,275,462,664,010,127
5. Step 5: Solve for x
   x = 7,275,462,664,010,127/53,858,251.69
6. Step 6: Final answer
   x = 135,085,384.99