Finding the Third Proportional to 52,426,877 and 78,640,323

Step by Step Solution

1. Step 1: Write the proportion equation
   52,426,877 : 78,640,323 = 78,640,323 : x
2. Step 2: Convert to fraction form
   52,426,877/78,640,323 = 78,640,323/x
3. Step 3: Cross multiply
   52,426,877x = 78,640,323 × 78,640,323
4. Step 4: Simplify right side
   52,426,877x = 6,184,300,401,544,329
5. Step 5: Solve for x
   x = 6,184,300,401,544,329/52,426,877
6. Step 6: Final answer
   x = 117,960,495.75