Finding the Third Proportional to 52,426,910 and 78,640,374

Step by Step Solution

1. Step 1: Write the proportion equation
   52,426,910 : 78,640,374 = 78,640,374 : x
2. Step 2: Convert to fraction form
   52,426,910/78,640,374 = 78,640,374/x
3. Step 3: Cross multiply
   52,426,910x = 78,640,374 × 78,640,374
4. Step 4: Simplify right side
   52,426,910x = 6,184,308,422,859,876
5. Step 5: Solve for x
   x = 6,184,308,422,859,876/52,426,910
6. Step 6: Final answer
   x = 117,960,574.50