Finding the Third Proportional to 45,815,214 and 64,086,516

Step by Step Solution

1. Step 1: Write the proportion equation
   45,815,214 : 64,086,516 = 64,086,516 : x
2. Step 2: Convert to fraction form
   45,815,214/64,086,516 = 64,086,516/x
3. Step 3: Cross multiply
   45,815,214x = 64,086,516 × 64,086,516
4. Step 4: Simplify right side
   45,815,214x = 4,107,081,533,018,256
5. Step 5: Solve for x
   x = 4,107,081,533,018,256/45,815,214
6. Step 6: Final answer
   x = 89,644,490.87