Finding the Third Proportional to 51,705,516 and 78,632,658

Step by Step Solution

1. Step 1: Write the proportion equation
   51,705,516 : 78,632,658 = 78,632,658 : x
2. Step 2: Convert to fraction form
   51,705,516/78,632,658 = 78,632,658/x
3. Step 3: Cross multiply
   51,705,516x = 78,632,658 × 78,632,658
4. Step 4: Simplify right side
   51,705,516x = 6,183,094,904,144,964
5. Step 5: Solve for x
   x = 6,183,094,904,144,964/51,705,516
6. Step 6: Final answer
   x = 119,582,887.52