Finding the Third Proportional to 11,406,978 and 25,364,374

Step by Step Solution

1. Step 1: Write the proportion equation
   11,406,978 : 25,364,374 = 25,364,374 : x
2. Step 2: Convert to fraction form
   11,406,978/25,364,374 = 25,364,374/x
3. Step 3: Cross multiply
   11,406,978x = 25,364,374 × 25,364,374
4. Step 4: Simplify right side
   11,406,978x = 643,351,468,411,876
5. Step 5: Solve for x
   x = 643,351,468,411,876/11,406,978
6. Step 6: Final answer
   x = 56,399,816.71