Finding the Third Proportional to 28,071,868 and 42,315,168

Step by Step Solution

1. Step 1: Write the proportion equation
   28,071,868 : 42,315,168 = 42,315,168 : x
2. Step 2: Convert to fraction form
   28,071,868/42,315,168 = 42,315,168/x
3. Step 3: Cross multiply
   28,071,868x = 42,315,168 × 42,315,168
4. Step 4: Simplify right side
   28,071,868x = 1,790,573,442,868,224
5. Step 5: Solve for x
   x = 1,790,573,442,868,224/28,071,868
6. Step 6: Final answer
   x = 63,785,332.81