Finding the Third Proportional to 27,818,151 and 42,553,318.50

Step by Step Solution

1. Step 1: Write the proportion equation
   27,818,151 : 42,553,318.50 = 42,553,318.50 : x
2. Step 2: Convert to fraction form
   27,818,151/42,553,318.50 = 42,553,318.50/x
3. Step 3: Cross multiply
   27,818,151x = 42,553,318.50 × 42,553,318.50
4. Step 4: Simplify right side
   27,818,151x = 1,810,784,915,362,442.25
5. Step 5: Solve for x
   x = 1,810,784,915,362,442.25/27,818,151
6. Step 6: Final answer
   x = 65,093,647.50