Finding the Third Proportional to 55,442,645 and 86,188,088

Step by Step Solution

1. Step 1: Write the proportion equation
   55,442,645 : 86,188,088 = 86,188,088 : x
2. Step 2: Convert to fraction form
   55,442,645/86,188,088 = 86,188,088/x
3. Step 3: Cross multiply
   55,442,645x = 86,188,088 × 86,188,088
4. Step 4: Simplify right side
   55,442,645x = 7,428,386,513,095,744
5. Step 5: Solve for x
   x = 7,428,386,513,095,744/55,442,645
6. Step 6: Final answer
   x = 133,983,263.48