Finding the Third Proportional to 78,750,312 and 123,254,700

Step by Step Solution

1. Step 1: Write the proportion equation
   78,750,312 : 123,254,700 = 123,254,700 : x
2. Step 2: Convert to fraction form
   78,750,312/123,254,700 = 123,254,700/x
3. Step 3: Cross multiply
   78,750,312x = 123,254,700 × 123,254,700
4. Step 4: Simplify right side
   78,750,312x = 15,191,721,072,090,000
5. Step 5: Solve for x
   x = 15,191,721,072,090,000/78,750,312
6. Step 6: Final answer
   x = 192,909,979.48