Finding the Third Proportional to 17,780,172 and 26,553,138

Step by Step Solution

1. Step 1: Write the proportion equation
   17,780,172 : 26,553,138 = 26,553,138 : x
2. Step 2: Convert to fraction form
   17,780,172/26,553,138 = 26,553,138/x
3. Step 3: Cross multiply
   17,780,172x = 26,553,138 × 26,553,138
4. Step 4: Simplify right side
   17,780,172x = 705,069,137,647,044
5. Step 5: Solve for x
   x = 705,069,137,647,044/17,780,172
6. Step 6: Final answer
   x = 39,654,798.48