Finding the Third Proportional to 12,691,480 and 19,065,354

Step by Step Solution

1. Step 1: Write the proportion equation
   12,691,480 : 19,065,354 = 19,065,354 : x
2. Step 2: Convert to fraction form
   12,691,480/19,065,354 = 19,065,354/x
3. Step 3: Cross multiply
   12,691,480x = 19,065,354 × 19,065,354
4. Step 4: Simplify right side
   12,691,480x = 363,487,723,145,316
5. Step 5: Solve for x
   x = 363,487,723,145,316/12,691,480
6. Step 6: Final answer
   x = 28,640,294.37