Finding the Third Proportional to 402,069,142 and 875,334,686

Step by Step Solution

1. Step 1: Write the proportion equation
   402,069,142 : 875,334,686 = 875,334,686 : x
2. Step 2: Convert to fraction form
   402,069,142/875,334,686 = 875,334,686/x
3. Step 3: Cross multiply
   402,069,142x = 875,334,686 × 875,334,686
4. Step 4: Simplify right side
   402,069,142x = 766,210,812,514,718,592
5. Step 5: Solve for x
   x = 766,210,812,514,718,592/402,069,142
6. Step 6: Final answer
   x = 1,905,669,280.42