Finding the Third Proportional to 57,291,904 and 90,868,516

Step by Step Solution

1. Step 1: Write the proportion equation
   57,291,904 : 90,868,516 = 90,868,516 : x
2. Step 2: Convert to fraction form
   57,291,904/90,868,516 = 90,868,516/x
3. Step 3: Cross multiply
   57,291,904x = 90,868,516 × 90,868,516
4. Step 4: Simplify right side
   57,291,904x = 8,257,087,200,042,256
5. Step 5: Solve for x
   x = 8,257,087,200,042,256/57,291,904
6. Step 6: Final answer
   x = 144,123,106.82