Finding the Third Proportional to 52,426,928 and 78,640,402

Step by Step Solution

1. Step 1: Write the proportion equation
   52,426,928 : 78,640,402 = 78,640,402 : x
2. Step 2: Convert to fraction form
   52,426,928/78,640,402 = 78,640,402/x
3. Step 3: Cross multiply
   52,426,928x = 78,640,402 × 78,640,402
4. Step 4: Simplify right side
   52,426,928x = 6,184,312,826,721,604
5. Step 5: Solve for x
   x = 6,184,312,826,721,604/52,426,928
6. Step 6: Final answer
   x = 117,960,618.00